{"product_id":"samsung-58e-21700-battery","title":"Samsung 58E 21700 5330mAh 10.7A Battery","description":"\u003cstyle\u003e\n.s58e-desc{\n  --bs-black:#000;\n  --bs-charcoal:#141414;\n  --bs-ink:#1f2328;\n  --bs-gray:#f3f5f6;\n  --bs-line:#d9dee3;\n  --bs-orange:#ef6f07;\n  --samsung-blue:#0b3a82;\n  --energy-green:#0f8b5f;\n  --ok:#108a00;\n  --warning:#ffb100;\n  --danger:#c81825;\n  --white:#fff;\n  --muted:#66707a;\n  --radius:18px;\n  --shadow:0 10px 30px rgba(0,0,0,.10);\n  max-width:1180px;\n  margin:0 auto;\n  padding:22px;\n  color:var(--bs-ink);\n  font-family:Arial,Helvetica,sans-serif;\n  line-height:1.45;\n  background:#fafafa;\n}\n.s58e-desc *{box-sizing:border-box;}\n.s58e-desc h1,.s58e-desc h2,.s58e-desc h3{line-height:1.12;margin:0 0 12px;letter-spacing:-.02em;}\n.s58e-desc p{margin:0 0 14px;}\n.s58e-desc .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(239,111,7,.12);color:var(--bs-orange);padding:7px 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.badge-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}\n.s58e-desc .badge{display:inline-flex;border:1px solid var(--bs-line);background:#fff;border-radius:999px;padding:7px 10px;font-size:12px;font-weight:800;color:#222;}\n.s58e-desc .section.dark .badge{background:#181b1f;color:#fff;border-color:#30343a;}\n.s58e-desc .footer-source{font-size:12px;color:var(--muted);margin-top:22px;border-top:1px solid var(--bs-line);padding-top:14px;}\n@media(max-width:980px){\n  .s58e-desc .two-col,.s58e-desc .chart-grid{grid-template-columns:1fr;}\n  .s58e-desc .kpi-grid{grid-template-columns:repeat(3,1fr);}\n  .s58e-desc .app-grid,.s58e-desc .formula-grid,.s58e-desc .faq-grid{grid-template-columns:repeat(2,1fr);}\n  .s58e-desc .pack-flow{grid-template-columns:1fr;}\n  .s58e-desc .flow-box:not(:last-child):after{display:none;}\n}\n@media(max-width:620px){\n  .s58e-desc{padding:12px;}\n  .s58e-desc .hero{padding:22px;}\n  .s58e-desc .section{padding:18px;}\n  .s58e-desc .kpi-grid,.s58e-desc .three-col,.s58e-desc .app-grid,.s58e-desc .formula-grid,.s58e-desc .faq-grid{grid-template-columns:1fr;}\n  .s58e-desc .kpi b{font-size:24px;}\n  .s58e-desc .bar-row{grid-template-columns:82px 1fr 68px;}\n  .s58e-desc .hero h1{font-size:32px;}\n}\n\u003c\/style\u003e\n\u003cdiv class=\"s58e-desc\"\u003e\n\u003csection class=\"hero\"\u003e\n\u003cdiv class=\"hero-grid\"\u003e\n\u003cdiv class=\"hero-copy\"\u003e\n\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e High-Capacity 21700 Energy Cell\u003c\/span\u003e\n\u003ch1\u003e\n\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eSamsung 58E 21700\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e5330mAh \/ 10.7A CDR\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp class=\"sub\"\u003eA high-energy lithium-ion cell designed for long runtime, high watt-hour density, stable moderate-current output, and scalable 21700 battery-pack integration in protected electronic systems.\u003c\/p\u003e\n\u003cdiv class=\"cta-row\"\u003e\n\u003cspan class=\"pill orange\"\u003eStandard Capacity: 5330mAh min\u003c\/span\u003e \u003cspan class=\"pill\"\u003eRated Capacity: 5170mAh min\u003c\/span\u003e \u003cspan class=\"pill\"\u003eContinuous Discharge: 10.7A\u003c\/span\u003e \u003cspan class=\"pill\"\u003eNominal Voltage: 3.64V\u003c\/span\u003e \u003cspan class=\"pill\"\u003eFormat: 21700 Flat Top\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"kpi-grid\"\u003e\n\u003cdiv class=\"kpi orange\"\u003e\n\u003cb\u003e5330\u003c\/b\u003e\u003csmall\u003emAh minimum capacity\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kpi black\"\u003e\n\u003cb\u003e10.7A\u003c\/b\u003e\u003csmall\u003econtinuous discharge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kpi blue\"\u003e\n\u003cb\u003e3.64V\u003c\/b\u003e\u003csmall\u003enominal voltage\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kpi green\"\u003e\n\u003cb\u003e20Wh\u003c\/b\u003e\u003csmall\u003etypical energy class\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kpi black\"\u003e\n\u003cb\u003e2.5V\u003c\/b\u003e\u003csmall\u003edischarge cut-off\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kpi orange\"\u003e\n\u003cb\u003e74g\u003c\/b\u003e\u003csmall\u003emaximum cell weight\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"two-col\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Technical Overview\u003c\/span\u003e\n\u003ch2\u003eSamsung INR21700-58E: high-capacity 21700 cell for runtime-driven packs.\u003c\/h2\u003e\n\u003cp class=\"muted\"\u003eThe Samsung 58E is engineered for systems that need more energy per cell while keeping current demand in a controlled low-to-moderate range. It is a strong candidate for battery packs, backup modules, power banks, energy storage assemblies, lighting systems, and mobility packs where pack-level protection and thermal design are properly specified.\u003c\/p\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eDesign position:\u003c\/strong\u003e Treat the 58E as a high-capacity, moderate-current industrial cell. The continuous discharge limit is 2C \/ approximately 10.7A per cell. The 3C value is a non-continuous reference and should not be used as the continuous design rating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCore Parameter\u003c\/th\u003e\n\u003cth\u003eTechnical Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer \/ Model\u003c\/td\u003e\n\u003ctd\u003eSamsung SDI INR21700-58E \/ CC5493F101 specification reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Format\u003c\/td\u003e\n\u003ctd\u003e21700 cylindrical, flat top, unprotected lithium-ion cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Capacity\u003c\/td\u003e\n\u003ctd\u003e5330mAh minimum at 0.2C discharge to 2.5V after standard charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Capacity\u003c\/td\u003e\n\u003ctd\u003e5170mAh minimum at 1C discharge to 2.5V after standard charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.64V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Discharge\u003c\/td\u003e\n\u003ctd\u003e2C \/ 10.66A, commonly rounded to 10.7A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Method\u003c\/td\u003e\n\u003ctd\u003eCC-CV to 4.20V; 0.5C standard charge current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e21.78mm maximum diameter × 71.00mm maximum height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Circuit\u003c\/td\u003e\n\u003ctd\u003eNone. Requires compatible device-level or pack-level protection.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section dark\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Electrical Envelope\u003c\/span\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eVoltage, current, and charge-control operating window.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"muted\"\u003eUse the following values as the product-page engineering reference. Final pack design should be validated against the latest manufacturer data sheet, protection electronics, enclosure airflow, thermal paths, and application duty cycle.\u003c\/p\u003e\n\u003cdiv class=\"chart-grid\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eCell Voltage Window\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eSingle-cell operating endpoints for charge and discharge control.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 640 250\" role=\"img\" aria-label=\"Samsung 58E voltage operating window diagram\"\u003e\n          \u003crect x=\"30\" y=\"35\" width=\"580\" height=\"54\" rx=\"27\" fill=\"#2a2e33\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"30\" y=\"35\" width=\"328\" height=\"54\" rx=\"27\" fill=\"#ef6f07\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"358\" y=\"35\" width=\"252\" height=\"54\" rx=\"27\" fill=\"#0f8b5f\" opacity=\".95\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"30\" y1=\"112\" x2=\"610\" y2=\"112\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"30\" y1=\"102\" x2=\"30\" y2=\"122\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"358\" y1=\"102\" x2=\"358\" y2=\"122\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"610\" y1=\"102\" x2=\"610\" y2=\"122\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003ctext x=\"30\" y=\"148\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"18\" font-weight=\"800\"\u003e2.5V\u003c\/text\u003e\n          \u003ctext x=\"358\" y=\"148\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"18\" font-weight=\"800\"\u003e3.64V\u003c\/text\u003e\n          \u003ctext x=\"610\" y=\"148\" text-anchor=\"middle\" fill=\"#fff\" font-size=\"18\" font-weight=\"800\"\u003e4.20V\u003c\/text\u003e\n          \u003ctext x=\"30\" y=\"174\" text-anchor=\"middle\" fill=\"#b9c0c7\" font-size=\"13\"\u003ecut-off\u003c\/text\u003e\n          \u003ctext x=\"358\" y=\"174\" text-anchor=\"middle\" fill=\"#b9c0c7\" font-size=\"13\"\u003enominal\u003c\/text\u003e\n          \u003ctext x=\"610\" y=\"174\" text-anchor=\"middle\" fill=\"#b9c0c7\" font-size=\"13\"\u003efull charge\u003c\/text\u003e\n          \u003cpath d=\"M120 210 C210 170 310 170 410 210\" fill=\"none\" stroke=\"#ef6f07\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath d=\"M420 210 C470 177 535 177 586 210\" fill=\"none\" stroke=\"#0f8b5f\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003ctext x=\"265\" y=\"232\" fill=\"#fff\" font-size=\"15\" font-weight=\"700\" text-anchor=\"middle\"\u003eDischarge region\u003c\/text\u003e\n          \u003ctext x=\"505\" y=\"232\" fill=\"#fff\" font-size=\"15\" font-weight=\"700\" text-anchor=\"middle\"\u003eCC-CV charge region\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eCharge Profile\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eStandard and maximum charge settings from Samsung 58E specification.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 640 250\" role=\"img\" aria-label=\"Samsung 58E charge current profile diagram\"\u003e\n          \u003crect x=\"48\" y=\"28\" width=\"544\" height=\"184\" rx=\"18\" fill=\"#111418\" stroke=\"#30343a\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"95\" y1=\"180\" x2=\"555\" y2=\"180\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"95\" y1=\"48\" x2=\"95\" y2=\"180\" stroke=\"#d8dde2\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cpolyline points=\"95,130 275,130 375,104 555,104\" fill=\"none\" stroke=\"#ef6f07\" stroke-width=\"8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/polyline\u003e\n          \u003cpolyline points=\"95,78 275,78 375,104 555,104\" fill=\"none\" stroke=\"#0b3a82\" stroke-width=\"8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" opacity=\".9\"\u003e\u003c\/polyline\u003e\n          \u003ctext x=\"64\" y=\"83\" fill=\"#fff\" font-size=\"14\" font-weight=\"800\" text-anchor=\"end\"\u003e5.33A\u003c\/text\u003e\n          \u003ctext x=\"64\" y=\"137\" fill=\"#fff\" font-size=\"14\" font-weight=\"800\" text-anchor=\"end\"\u003e2.67A\u003c\/text\u003e\n          \u003ctext x=\"60\" y=\"184\" fill=\"#fff\" font-size=\"14\" font-weight=\"800\" text-anchor=\"end\"\u003e0A\u003c\/text\u003e\n          \u003ctext x=\"115\" y=\"204\" fill=\"#b9c0c7\" font-size=\"13\"\u003eConstant current\u003c\/text\u003e\n          \u003ctext x=\"375\" y=\"204\" fill=\"#b9c0c7\" font-size=\"13\"\u003eConstant voltage taper to 0.02C\u003c\/text\u003e\n          \u003ccircle cx=\"265\" cy=\"78\" r=\"7\" fill=\"#fff\"\u003e\u003c\/circle\u003e\n          \u003ccircle cx=\"265\" cy=\"132\" r=\"7\" fill=\"#fff\"\u003e\u003c\/circle\u003e\n          \u003ctext x=\"280\" y=\"62\" fill=\"#fff\" font-size=\"13\" font-weight=\"700\"\u003eMax charge: 1C \/ 5.33A, not for cycle life\u003c\/text\u003e\n          \u003ctext x=\"280\" y=\"151\" fill=\"#fff\" font-size=\"13\" font-weight=\"700\"\u003eStandard charge: 0.5C \/ 2.67A \/ 4 hours\u003c\/text\u003e\n          \u003ctext x=\"530\" y=\"64\" fill=\"#fff\" font-size=\"15\" font-weight=\"900\" text-anchor=\"middle\"\u003e4.20V\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Current \u0026amp; Runtime Translation\u003c\/span\u003e\n\u003ch2\u003eHow the 58E's C-rate values convert into real design limits.\u003c\/h2\u003e\n\u003cp class=\"muted\"\u003eSamsung defines 1C as 5.33A for the 58E. The continuous discharge limit is 2C \/ approximately 10.66A. The 3C \/ approximately 15.99A value is explicitly not for continuous discharge and should not be used as the continuous pack-design rating.\u003c\/p\u003e\n\u003cdiv class=\"chart-grid\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eC-Rate to Current Map\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eReference currents derived from the 1C = 5.33A definition.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e0.2C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 20%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e1.07A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e0.5C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 50%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e2.67A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e1C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e5.33A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e2C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e10.66A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e3C*\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill warn\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e15.99A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eCapacity test\u003c\/span\u003e\u003cspan\u003e*Not continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eApproximate Constant-Current Runtime\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eIdealized runtime using 5.33Ah standard capacity. Actual runtime changes with voltage sag, temperature, cut-off, and pack design.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e1.07A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e300m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e2.67A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 40%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e120m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e5.33A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 20%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e60m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e10.66A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 10%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e30m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e15.99A*\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill warn\" style=\"width: 6.7%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e20m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003e0 min\u003c\/span\u003e\u003cspan\u003e300 min scale\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003ePer-Cell Power at Nominal Voltage\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eApproximate electrical output using 3.64V nominal voltage.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e1.07A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 6.7%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e3.9W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e2.67A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 16.7%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e9.7W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e5.33A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 33.3%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e19.4W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e10.66A\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 66.7%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e38.8W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e15.99A*\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill warn\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e58.2W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eContinuous design: 10.7A max\u003c\/span\u003e\u003cspan\u003e*Not continuous\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eCurrent Design Guidance\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eKeep the average and continuous current at or below the rated envelope after thermal derating.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 640 260\" role=\"img\" aria-label=\"Samsung 58E current design guidance gauge\"\u003e\n          \u003crect x=\"45\" y=\"55\" width=\"550\" height=\"44\" rx=\"22\" fill=\"#e8ecef\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"45\" y=\"55\" width=\"365\" height=\"44\" rx=\"22\" fill=\"#ef6f07\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"410\" y=\"55\" width=\"91\" height=\"44\" rx=\"22\" fill=\"#0b3a82\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"501\" y=\"55\" width=\"94\" height=\"44\" rx=\"22\" fill=\"#c81825\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"45\" y1=\"122\" x2=\"595\" y2=\"122\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"45\" y1=\"113\" x2=\"45\" y2=\"132\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"410\" y1=\"113\" x2=\"410\" y2=\"132\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"501\" y1=\"113\" x2=\"501\" y2=\"132\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"595\" y1=\"113\" x2=\"595\" y2=\"132\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003ctext x=\"45\" y=\"154\" text-anchor=\"middle\" font-size=\"14\" font-weight=\"900\" fill=\"#222\"\u003e0A\u003c\/text\u003e\n          \u003ctext x=\"410\" y=\"154\" text-anchor=\"middle\" font-size=\"14\" font-weight=\"900\" fill=\"#222\"\u003e10.7A\u003c\/text\u003e\n          \u003ctext x=\"501\" y=\"154\" text-anchor=\"middle\" font-size=\"14\" font-weight=\"900\" fill=\"#222\"\u003e16A\u003c\/text\u003e\n          \u003ctext x=\"595\" y=\"154\" text-anchor=\"middle\" font-size=\"14\" font-weight=\"900\" fill=\"#222\"\u003eLimit\u003c\/text\u003e\n          \u003ctext x=\"220\" y=\"196\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"900\" fill=\"#222\"\u003eRecommended continuous operating region\u003c\/text\u003e\n          \u003ctext x=\"455\" y=\"196\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"900\" fill=\"#222\"\u003eDerate \/ validate\u003c\/text\u003e\n          \u003ctext x=\"548\" y=\"196\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"900\" fill=\"#222\"\u003eNot continuous\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warning-note\"\u003e\n\u003cstrong\u003eCurrent rating note:\u003c\/strong\u003e Use 10.7A per cell as the practical continuous design rating. Do not use the 3C value as a continuous discharge rating.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Energy, Cycle Life \u0026amp; Storage\u003c\/span\u003e\n\u003ch2\u003eCapacity retention metrics for long-runtime systems.\u003c\/h2\u003e\n\u003cdiv class=\"chart-grid\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eCapacity Reference Levels\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eSamsung specification values for standard, rated, cycle, and storage recovery capacity.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eStd min\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e5.330Ah\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eRated min\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e5.170Ah\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e500 cycles\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill black\" style=\"width: 77.6%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e4.136Ah\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eStorage\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 90%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e4.797Ah\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003e0Ah\u003c\/span\u003e\u003cspan\u003e5.33Ah scale\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eEnergy Estimate\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eApproximate watt-hours using 3.64V nominal voltage plus the listed 20.0Wh typical energy class.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eStd min\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e19.4Wh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eTyp class\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e20.0Wh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eRated min\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 94%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e18.8Wh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e500 cycles\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill black\" style=\"width: 75%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e15.1Wh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eWh = Ah × nominal V\u003c\/span\u003e\u003cspan\u003e20Wh scale\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eCycle-Life Criterion\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eSamsung criterion: capacity ≥4.136Ah after 500 cycles under listed charge\/discharge conditions.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 640 280\" role=\"img\" aria-label=\"Samsung 58E cycle retention lower bound chart\"\u003e\n          \u003crect x=\"42\" y=\"25\" width=\"556\" height=\"210\" rx=\"16\" fill=\"#f7f8fa\" stroke=\"#d9dee3\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"82\" y1=\"200\" x2=\"560\" y2=\"200\" stroke=\"#2b3035\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"82\" y1=\"54\" x2=\"82\" y2=\"200\" stroke=\"#2b3035\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"82\" y1=\"82\" x2=\"560\" y2=\"169\" stroke=\"#ef6f07\" stroke-width=\"6\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\n          \u003ccircle cx=\"82\" cy=\"82\" r=\"8\" fill=\"#000\"\u003e\u003c\/circle\u003e\n          \u003ccircle cx=\"560\" cy=\"169\" r=\"8\" fill=\"#000\"\u003e\u003c\/circle\u003e\n          \u003cline x1=\"82\" y1=\"169\" x2=\"560\" y2=\"169\" stroke=\"#c81825\" stroke-width=\"2\" stroke-dasharray=\"8 7\"\u003e\u003c\/line\u003e\n          \u003ctext x=\"92\" y=\"75\" fill=\"#111\" font-size=\"15\" font-weight=\"900\"\u003eStart: rated capacity reference\u003c\/text\u003e\n          \u003ctext x=\"363\" y=\"157\" fill=\"#111\" font-size=\"15\" font-weight=\"900\"\u003e500 cycles ≥ 80%\u003c\/text\u003e\n          \u003ctext x=\"82\" y=\"230\" fill=\"#333\" font-size=\"13\" font-weight=\"800\" text-anchor=\"middle\"\u003e0\u003c\/text\u003e\n          \u003ctext x=\"560\" y=\"230\" fill=\"#333\" font-size=\"13\" font-weight=\"800\" text-anchor=\"middle\"\u003e500 cycles\u003c\/text\u003e\n          \u003ctext x=\"54\" y=\"88\" fill=\"#333\" font-size=\"13\" font-weight=\"800\" text-anchor=\"end\"\u003e100%\u003c\/text\u003e\n          \u003ctext x=\"54\" y=\"174\" fill=\"#333\" font-size=\"13\" font-weight=\"800\" text-anchor=\"end\"\u003e80%\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eStorage Recovery \u0026amp; Shipping Band\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eReference values for storage recovery and ex-factory voltage.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eRecovery\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 90%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e≥90%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eStorage test\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e20d @60°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eShip low\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill black\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e3.54V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eShip high\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill black\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e3.64V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eEx-factory voltage range\u003c\/span\u003e\u003cspan\u003e3.54V–3.64V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Discharge Characteristics\u003c\/span\u003e\n\u003ch2\u003eRate capability and temperature dependence.\u003c\/h2\u003e\n\u003cdiv class=\"chart-grid\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eDischarge Rate Capability\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eRelative capacity after standard charge at 23°C, discharged to 2.5V.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e0.2C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e100%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e1C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e97%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e2C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill black\" style=\"width: 95%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e95%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eStandard capacity index\u003c\/span\u003e\u003cspan\u003e100%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eTemperature Dependence\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eRelative capacity at 1C discharge after standard charge at 23°C.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e-10°C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill warn\" style=\"width: 50%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e50%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e23°C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e97%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003e40°C\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 97%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e97%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mini-axis\"\u003e\n\u003cspan\u003eCold-temperature derating is significant\u003c\/span\u003e\u003cspan\u003e23°C test reference\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eOperating Temperature Envelope\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eAmbient operating range with pack-level thermal protection required.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 640 270\" role=\"img\" aria-label=\"Samsung 58E operating temperature range diagram\"\u003e\n          \u003crect x=\"62\" y=\"72\" width=\"520\" height=\"26\" rx=\"13\" fill=\"#e9edf0\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"295\" y=\"72\" width=\"194\" height=\"26\" rx=\"13\" fill=\"#ef6f07\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"178\" y=\"136\" width=\"388\" height=\"26\" rx=\"13\" fill=\"#0b3a82\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"62\" y1=\"112\" x2=\"582\" y2=\"112\" stroke=\"#333\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"62\" y1=\"104\" x2=\"62\" y2=\"120\" stroke=\"#333\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"178\" y1=\"104\" x2=\"178\" y2=\"120\" stroke=\"#333\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"295\" y1=\"104\" x2=\"295\" y2=\"120\" stroke=\"#333\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"489\" y1=\"104\" x2=\"489\" y2=\"120\" stroke=\"#333\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"566\" y1=\"104\" x2=\"566\" y2=\"120\" stroke=\"#333\"\u003e\u003c\/line\u003e\n          \u003ctext x=\"62\" y=\"198\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"900\" fill=\"#222\"\u003e-20°C\u003c\/text\u003e\n          \u003ctext x=\"178\" y=\"198\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"900\" fill=\"#222\"\u003e-10°C\u003c\/text\u003e\n          \u003ctext x=\"295\" y=\"198\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"900\" fill=\"#222\"\u003e0°C\u003c\/text\u003e\n          \u003ctext x=\"489\" y=\"198\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"900\" fill=\"#222\"\u003e45°C\u003c\/text\u003e\n          \u003ctext x=\"566\" y=\"198\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"900\" fill=\"#222\"\u003e60°C\u003c\/text\u003e\n          \u003ctext x=\"120\" y=\"90\" font-size=\"14\" font-weight=\"900\" fill=\"#222\"\u003eStorage guidance varies by duration\u003c\/text\u003e\n          \u003ctext x=\"310\" y=\"90\" font-size=\"14\" font-weight=\"900\" fill=\"#fff\"\u003eCharge 0–45°C\u003c\/text\u003e\n          \u003ctext x=\"315\" y=\"154\" font-size=\"14\" font-weight=\"900\" fill=\"#fff\" text-anchor=\"middle\"\u003eDischarge -10–60°C\u003c\/text\u003e\n          \u003ctext x=\"320\" y=\"235\" font-size=\"13\" fill=\"#66707a\" text-anchor=\"middle\"\u003eSet discharge over-temperature protection below 70°C cell surface.\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eInternal Impedance \u0026amp; Heat Planning\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eInitial impedance limit and heat-design notes for pack builders.\u003c\/p\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eAC 1kHz\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill blue\" style=\"width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e≤15mΩ\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eCDR\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill\" style=\"width: 67%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e10.7A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bar-row\"\u003e\n\u003cspan class=\"bar-label\"\u003eOTP\u003c\/span\u003e\u003cspan class=\"bar-track\"\u003e\u003cspan class=\"bar-fill warn\" style=\"width: 88%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"bar-value\"\u003e\u0026lt;70°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003ePack-builder note:\u003c\/strong\u003e Heat is strongly affected by enclosure geometry, nickel design, cell spacing, airflow, and group balancing. Always validate temperature rise in the finished assembly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Mechanical Integration\u003c\/span\u003e\n\u003ch2\u003e21700 dimensional envelope for holders, spacers, and welded packs.\u003c\/h2\u003e\n\u003cdiv class=\"two-col\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003eCell Envelope Diagram\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eMaximum dimensions from the CC5493F101 specification reference.\u003c\/p\u003e\n\u003csvg class=\"diagram\" viewbox=\"0 0 620 360\" role=\"img\" aria-label=\"Samsung 58E 21700 mechanical dimensions diagram\"\u003e\n          \u003crect x=\"275\" y=\"75\" width=\"86\" height=\"230\" rx=\"21\" fill=\"#f6f8fa\" stroke=\"#111\" stroke-width=\"3\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"275\" y=\"65\" width=\"86\" height=\"30\" rx=\"8\" fill=\"#e8ecef\" stroke=\"#111\" stroke-width=\"3\"\u003e\u003c\/rect\u003e\n          \u003crect x=\"296\" y=\"54\" width=\"44\" height=\"16\" rx=\"6\" fill=\"#fff\" stroke=\"#111\" stroke-width=\"3\"\u003e\u003c\/rect\u003e\n          \u003cline x1=\"260\" y1=\"54\" x2=\"260\" y2=\"305\" stroke=\"#111\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"383\" y1=\"54\" x2=\"383\" y2=\"305\" stroke=\"#111\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"260\" y1=\"305\" x2=\"383\" y2=\"305\" stroke=\"#111\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"383\" y1=\"305\" x2=\"383\" y2=\"315\" stroke=\"#111\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cline x1=\"260\" y1=\"305\" x2=\"260\" y2=\"315\" stroke=\"#111\" stroke-width=\"2\"\u003e\u003c\/line\u003e\n          \u003cpath d=\"M255 315 L383 315\" stroke=\"#ef6f07\" stroke-width=\"4\"\u003e\u003c\/path\u003e\n          \u003ctext x=\"321\" y=\"344\" text-anchor=\"middle\" font-size=\"17\" font-weight=\"900\" fill=\"#111\"\u003eMax Ø21.78mm\u003c\/text\u003e\n          \u003cline x1=\"420\" y1=\"54\" x2=\"420\" y2=\"305\" stroke=\"#0b3a82\" stroke-width=\"4\"\u003e\u003c\/line\u003e\n          \u003cpath d=\"M410 54 L430 54\" stroke=\"#0b3a82\" stroke-width=\"4\"\u003e\u003c\/path\u003e\n          \u003cpath d=\"M410 305 L430 305\" stroke=\"#0b3a82\" stroke-width=\"4\"\u003e\u003c\/path\u003e\n          \u003ctext x=\"455\" y=\"188\" font-size=\"17\" font-weight=\"900\" fill=\"#111\"\u003eMax 71.00mm\u003c\/text\u003e\n          \u003ctext x=\"195\" y=\"145\" text-anchor=\"end\" font-size=\"15\" fill=\"#66707a\"\u003eFlat top\u003c\/text\u003e\n          \u003ctext x=\"195\" y=\"173\" text-anchor=\"end\" font-size=\"15\" fill=\"#66707a\"\u003eUnprotected\u003c\/text\u003e\n          \u003ctext x=\"195\" y=\"201\" text-anchor=\"end\" font-size=\"15\" fill=\"#66707a\"\u003e74g max\u003c\/text\u003e\n        \u003c\/svg\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMechanical Item\u003c\/th\u003e\n\u003cth\u003eIntegration Guidance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003e21700 cylindrical cell; confirm device supports 21700 cells, not 18650 only.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003eUse 21.78mm maximum for holder, sleeve, and pack-spacing clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003eUse 71.00mm maximum for enclosure and contact stack-up tolerance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminals\u003c\/td\u003e\n\u003ctd\u003eFlat top; check spring contact geometry and polarity orientation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Assembly\u003c\/td\u003e\n\u003ctd\u003eUse properly engineered spot-welded interconnects. Do not solder directly to the cell.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThe cell is unprotected. Finished packs should include BMS, fusing, insulation, and thermal controls.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"badge-row\"\u003e\n\u003cspan class=\"badge\"\u003e21700 format\u003c\/span\u003e \u003cspan class=\"badge\"\u003eFlat top\u003c\/span\u003e \u003cspan class=\"badge\"\u003eUnprotected\u003c\/span\u003e \u003cspan class=\"badge\"\u003eSpot-weld recommended\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section dark\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Pack Engineering\u003c\/span\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eScaling formulas for series and parallel battery packs.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"muted\"\u003eThe values below are simplified engineering calculations for initial planning. Finished packs require cell matching, BMS selection, fusing, insulation, thermal testing, enclosure validation, and compliance review.\u003c\/p\u003e\n\u003cdiv class=\"formula-grid\"\u003e\n\u003cdiv class=\"formula\"\u003e\n\u003ccode\u003eVnom = S × 3.64V\u003c\/code\u003e\u003cspan\u003eSeries cells increase nominal voltage.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"formula\"\u003e\n\u003ccode\u003eAh = P × 5.33Ah\u003c\/code\u003e\u003cspan\u003eParallel cells increase capacity.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"formula\"\u003e\n\u003ccode\u003eIcont = P × 10.7A\u003c\/code\u003e\u003cspan\u003eParallel cells increase continuous current before derating.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"formula\"\u003e\n\u003ccode\u003eWh ≈ S × P × 19.4Wh\u003c\/code\u003e\u003cspan\u003eMinimum standard capacity estimate; spec lists 20.0Wh typical class.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-grid\"\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eExample Pack Scaling\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eIllustrative values only; actual pack limits depend on BMS and thermal derating.\u003c\/p\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eNominal System Estimate\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1S1P\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e3.64V \/ 5.33Ah \/ 10.7A \/ ≈19.4Wh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4S2P\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e14.56V \/ 10.66Ah \/ 21.3A \/ ≈155Wh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7S3P\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e25.48V \/ 15.99Ah \/ 32.0A \/ ≈408Wh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10S4P\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e36.4V \/ 21.32Ah \/ 42.6A \/ ≈776Wh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chart-card\"\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003ePack Protection Flow\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"caption\"\u003eRecommended engineering workflow for lithium-ion pack integration.\u003c\/p\u003e\n\u003cdiv class=\"pack-flow\"\u003e\n\u003cdiv class=\"flow-box\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eCell Match\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003eCapacity, IR, voltage, batch\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flow-box\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eInterconnect\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003eNickel, weld schedule, fusing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flow-box\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eBMS\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003eOVP, UVP, OCP, balancing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flow-box\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eThermal\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003eSpacing, airflow, sensors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flow-box\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eValidate\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003eLoad, charge, abuse margins\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Recommended Applications\u003c\/span\u003e\n\u003ch2\u003eBest-fit use cases for the Samsung 58E.\u003c\/h2\u003e\n\u003cdiv class=\"app-grid\"\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eESS\u003c\/div\u003e\n\u003ch3\u003eEnergy Storage\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eRuntime-focused modules for backup power, solar storage, and stationary battery systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003ePB\u003c\/div\u003e\n\u003ch3\u003ePower Banks\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eHigh-capacity portable power designs where long runtime is prioritized over extreme current.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eEV\u003c\/div\u003e\n\u003ch3\u003eMobility Packs\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eE-bike and light mobility packs with adequate parallel count, BMS protection, and thermal validation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eLED\u003c\/div\u003e\n\u003ch3\u003eLED Lighting\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eLanterns, work lights, and long-duration LED systems requiring efficient energy storage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eMED\u003c\/div\u003e\n\u003ch3\u003eInstrumentation\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eIndustrial, test, and medical-adjacent devices requiring reliable moderate-current operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eUPS\u003c\/div\u003e\n\u003ch3\u003eBackup Modules\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eProtected backup packs where energy density, charge control, and cell balancing are engineered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eIOT\u003c\/div\u003e\n\u003ch3\u003eRemote Electronics\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eSensor, telemetry, and communications hardware with controlled charge and discharge limits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app\"\u003e\n\u003cdiv class=\"icon\"\u003eDIY\u003c\/div\u003e\n\u003ch3\u003eCustom Packs\u003c\/h3\u003e\n\u003cp class=\"muted\"\u003eExperienced pack builders using matched cells, spot welding, and properly rated safety electronics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warning-note\"\u003e\n\u003cstrong\u003eCompatibility warning:\u003c\/strong\u003e This is an unprotected industrial cell. It should only be used by customers who understand lithium-ion safety, current limits, charging requirements, and device compatibility. Do not use loose cells in pockets, bags, or with metal objects.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Full Technical Specification\u003c\/span\u003e\n\u003ch2\u003eSamsung 58E specification table.\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eSamsung 58E Technical Detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eSamsung 58E 21700 Battery, 5330mAh, 10.7A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSamsung Specification Reference\u003c\/td\u003e\n\u003ctd\u003eCC5493F101, lithium-ion rechargeable cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Type\u003c\/td\u003e\n\u003ctd\u003eRechargeable lithium-ion cylindrical cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Discharge Capacity\u003c\/td\u003e\n\u003ctd\u003e≥5330mAh, measured at 0.2C discharge to 2.5V after 0.5C standard charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Discharge Capacity\u003c\/td\u003e\n\u003ctd\u003e≥5170mAh, measured at 1C discharge to 2.5V after standard charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Energy Class\u003c\/td\u003e\n\u003ctd\u003e20.0Wh listed in the standard-capacity line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.64V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull Charge Voltage\u003c\/td\u003e\n\u003ctd\u003e4.20V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Method\u003c\/td\u003e\n\u003ctd\u003eCC-CV, constant voltage with limited current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Charge Current\u003c\/td\u003e\n\u003ctd\u003e0.5C \/ 2665mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Charge Time\u003c\/td\u003e\n\u003ctd\u003eApproximately 4 hours under specified condition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Charge Current\u003c\/td\u003e\n\u003ctd\u003e1C \/ 5330mA; not for cycle-life condition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Termination\u003c\/td\u003e\n\u003ctd\u003e0.02C cut-off under standard charge condition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Discharge\u003c\/td\u003e\n\u003ctd\u003e2C \/ 10.66A, commonly rounded to 10.7A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-Continuous Discharge Reference\u003c\/td\u003e\n\u003ctd\u003e3C \/ 15.99A; not for continuous discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Cut-off Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V end-of-discharge voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Internal Impedance\u003c\/td\u003e\n\u003ctd\u003e≤15mΩ measured at AC 1kHz after standard charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle Life Reference\u003c\/td\u003e\n\u003ctd\u003eCapacity ≥4136mAh after 500 cycles under listed 0.5C charge and 1C discharge condition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Recovery Reference\u003c\/td\u003e\n\u003ctd\u003eCapacity recovery ≥4797mAh after 20 days at 60°C, then 0.2C discharge to 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e74g maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eMax. 21.78mm diameter × max. 71.00mm height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Temperature Range\u003c\/td\u003e\n\u003ctd\u003e0°C to 45°C ambient\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-10°C to 60°C ambient\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature Guidance\u003c\/td\u003e\n\u003ctd\u003e1 year: -20~23°C; 3 months: -20~45°C; 1 month: -20~60°C at ex-factory status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEx-Factory Voltage\u003c\/td\u003e\n\u003ctd\u003e3.54V to 3.64V charging voltage range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eUnprotected cell; use suitable device or pack protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Method\u003c\/td\u003e\n\u003ctd\u003eDo not solder directly to the cell; use properly designed spot-welded interconnects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Safety \u0026amp; Handling\u003c\/span\u003e\n\u003ch2\u003eProfessional lithium-ion handling requirements.\u003c\/h2\u003e\n\u003cdiv class=\"two-col\"\u003e\n\u003cdiv class=\"safety\"\u003e\n\u003ch3\u003eRequired Practices\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse only with a charger designed for 4.20V lithium-ion cells.\u003c\/li\u003e\n\u003cli\u003eKeep current, voltage, and temperature within manufacturer limits.\u003c\/li\u003e\n\u003cli\u003eUse an appropriate BMS or protection circuit in battery packs.\u003c\/li\u003e\n\u003cli\u003eStore and transport cells in protective cases, never loose with metal objects.\u003c\/li\u003e\n\u003cli\u003eInspect wrappers, insulators, and terminal rings before every installation.\u003c\/li\u003e\n\u003cli\u003eUse proper spot welding for pack assembly; avoid heat damage to terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"safety\"\u003e\n\u003ch3\u003eDo Not\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not short-circuit, overcharge, over-discharge, crush, puncture, or incinerate.\u003c\/li\u003e\n\u003cli\u003eDo not use a cell with damaged wrap, denting, leakage, rust, or abnormal heat.\u003c\/li\u003e\n\u003cli\u003eDo not mix old and new cells, different models, different batches, or mismatched states of charge.\u003c\/li\u003e\n\u003cli\u003eDo not solder directly to the cell body or terminals.\u003c\/li\u003e\n\u003cli\u003eDo not leave cells charging unattended or on combustible surfaces.\u003c\/li\u003e\n\u003cli\u003eDo not use in e-cigarettes, vaporizers, or similar devices.\u003c\/li\u003e\n\u003cli\u003eDo not use in any device that exceeds the cell's current, thermal, or voltage envelope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Lithium-ion cells are high-energy components. The purchaser is responsible for confirming device compatibility and safe operation. Resellers and pack builders should provide all required warnings and ensure finished products include appropriate protection.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section faq-section\"\u003e\u003cspan class=\"eyebrow\"\u003e\u003cspan class=\"dot\"\u003e\u003c\/span\u003e Frequently Asked Questions\u003c\/span\u003e\n\u003ch2\u003eSamsung 58E FAQ\u003c\/h2\u003e\n\u003cdiv class=\"faq-grid\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eIs the Samsung 58E a 5330mAh or 5800mAh cell?\u003c\/h3\u003e\n\u003cp\u003eThis product listing is for the 5330mAh Samsung 58E \/ CC5493F101 cell. Use 5330mAh minimum standard capacity and 5170mAh minimum rated capacity for technical calculations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat is the continuous discharge rating?\u003c\/h3\u003e\n\u003cp\u003eThe continuous discharge rating is 2C, which is approximately 10.66A and commonly rounded to 10.7A per cell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat does the 3C rating mean?\u003c\/h3\u003e\n\u003cp\u003eThe 3C value is a non-continuous discharge reference. It should not be used as the continuous current rating for devices, battery packs, or product copy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eIs the Samsung 58E protected?\u003c\/h3\u003e\n\u003cp\u003eNo. This is an unprotected industrial cell. It does not include built-in over-charge, over-discharge, over-current, short-circuit, or thermal protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat charger should I use?\u003c\/h3\u003e\n\u003cp\u003eUse a quality lithium-ion charger that supports CC-CV charging to 4.20V. Standard charge current is 0.5C \/ 2.665A; maximum charge current is 1C \/ 5.33A under specified conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat is the discharge cut-off voltage?\u003c\/h3\u003e\n\u003cp\u003eThe specified end-of-discharge voltage is 2.5V per cell. A BMS or compatible device should prevent the cell from being over-discharged below this point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eHow much energy does one cell store?\u003c\/h3\u003e\n\u003cp\u003eUsing 5.33Ah minimum standard capacity and 3.64V nominal voltage, one cell stores approximately 19.4Wh. The specification also lists a 20.0Wh typical energy class.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat devices are best for the 58E?\u003c\/h3\u003e\n\u003cp\u003eThe 58E is best for long-runtime, moderate-current systems such as energy storage packs, power banks, backup modules, LED lighting, instrumentation, and professionally designed multi-cell mobility packs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eIs it good for high-drain applications?\u003c\/h3\u003e\n\u003cp\u003eNot as a single-cell high-drain option. Choose the 58E when energy density and runtime matter most. For very high current, use more cells in parallel or select a cell designed for higher continuous discharge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWill it fit in an 18650 device?\u003c\/h3\u003e\n\u003cp\u003eNo, not unless the device specifically supports 21700 cells. The 58E is physically larger than an 18650, with a manufacturer maximum of 21.78mm diameter and 71.00mm height.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eCan I use this cell in an e-bike or scooter pack?\u003c\/h3\u003e\n\u003cp\u003eYes, when the pack is professionally designed with adequate parallel count, a correctly rated BMS, cell balancing, fusing, thermal design, and mechanical protection. Do not treat a loose cell as a complete protected battery pack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eCan this be used in e-cigarettes or vaporizers?\u003c\/h3\u003e\n\u003cp\u003eNo. Do not use this cell in e-cigarettes, vaporizers, or similar devices. Use only in compatible equipment that stays within the cell specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eCan I solder directly to the cell?\u003c\/h3\u003e\n\u003cp\u003eNo. Direct soldering can overheat the cell and damage safety-critical internal structures. Pack assembly should use properly designed spot-welded nickel or nickel-plated interconnects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eCan I mix Samsung 58E cells with other cells?\u003c\/h3\u003e\n\u003cp\u003eNo. Do not mix models, ages, capacities, internal resistance values, batches, or states of charge in a battery pack. Use matched cells and maintain balanced groups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eWhat temperature range can it operate in?\u003c\/h3\u003e\n\u003cp\u003eSamsung specifies 0°C to 45°C for charging and -10°C to 60°C for discharging. Finished packs should include thermal monitoring and protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eHow should the cells be stored?\u003c\/h3\u003e\n\u003cp\u003eStore cells in a cool, dry place in protective packaging or cases. For longer storage, cooler temperatures are preferred and cells should be isolated from conductive objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003ch3\u003eIs this safe to carry loose?\u003c\/h3\u003e\n\u003cp\u003eNo. Never carry loose lithium-ion cells in a pocket, bag, or toolbox. Use an insulating battery case so terminals cannot contact keys, coins, tools, or other metal objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"footer-source\"\u003eTechnical values are compiled from the Samsung 58E product listing and the Samsung SDI CC5493F101 cell specification data sheet linked from the product page. Always confirm the latest data sheet and device requirements before engineering or assembling battery packs.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":45385943842967,"sku":"Samsung-INR21700-58E-CC5563F101","price":2.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0481\/9678\/0183\/files\/ChatGPTImageJun17_2026_05_14_30AM.png?v=1781687725","url":"https:\/\/www.18650batterystore.com\/en-gb\/products\/samsung-58e-21700-battery","provider":"18650BatteryStore.com","version":"1.0","type":"link"}