Pre-Purchase Technical Questions
Ask before buying if you are unsure about cell size, top style, chemistry, discharge rating, charger compatibility, BMS requirements, or LiFePO4 system sizing.
Customer support • Technical help • Order assistance
Need help choosing the correct lithium-ion battery, charger, LiFePO4 battery, or pack-building supply? Our team is here to help with pre-purchase questions, order support, shipping concerns, wholesale inquiries, and safe battery-handling guidance.
Use the contact method that best matches your situation. Including the right details up front helps our team troubleshoot quickly and accurately.
Ask before buying if you are unsure about cell size, top style, chemistry, discharge rating, charger compatibility, BMS requirements, or LiFePO4 system sizing.
For tracking, delivery questions, damaged packages, address concerns, or order-status help, include your order number and the email used at checkout.
For bulk 18650 batteries, bulk 21700 batteries, Epoch LiFePO4, chargers, supplies, pallet quotes, or tax-exempt purchasing, use the wholesale inquiry option.
If you have a swollen, hot, leaking, punctured, corroded, or physically damaged lithium battery, stop using it and contact us for general next-step guidance.
| Question Type | Information to Include | Why It Matters |
|---|---|---|
| Battery compatibility | Device model, required cell size, top style, protected/unprotected requirement, chemistry, voltage, continuous discharge rating, and battery compartment dimensions. | Small differences in length, terminal style, discharge capability, or chemistry can prevent fitment or create unsafe operating conditions. |
| Charger selection | Battery chemistry, nominal voltage, capacity, charge-current limits, number of cells, and whether the battery has a protection circuit or BMS. | Using the wrong charger profile can damage lithium-ion or LiFePO4 batteries and may create a safety hazard. |
| Order or tracking issue | Order number, email used at checkout, delivery address concern, tracking number, and carrier notification details. | Order details allow us to locate the shipment, review fulfillment status, and provide the correct next steps. |
| Damaged shipment | Order number plus photos of the outside box, shipping label, packing material, and affected product. Keep all packaging until instructed. | Carrier claims and safety reviews require documentation of the package condition as delivered. |
| Wholesale inquiry | Company name, website, business type, target sizes or brands, estimated monthly volume, resale-certificate status, and shipping destination. | Commercial details help our B2B team quote the correct volume tier, master-carton pricing, pallet options, and tax-exempt setup. |
Review processing times, carrier options, damaged shipment procedures, final-sale battery language, and DOA review instructions.
View Shipping & ReturnsUnderstand why battery sales are final and what to do if an item arrives damaged or a battery appears dead on arrival.
View Returns PolicyApply for B2B lithium battery pricing, tax-exempt purchasing, volume discounts, and commercial procurement support.
Open a Wholesale AccountLearn how to tape terminals, store used cells safely, and find a local lithium battery recycling drop-off location.
Read Recycling GuideCompare high-drain cells, protected cells, capacity ratings, and common 18650 battery use cases before purchasing.
Read 18650 GuideReview 12V lithium deep-cycle options for RVs, marine systems, off-grid solar, vans, and high-capacity applications.
Read LiFePO4 GuideDo not mail, ship, or transport a swollen, hot, smoking, leaking, punctured, crushed, corroded, or physically damaged lithium battery unless you have received proper instructions from qualified personnel and the shipment is permitted under applicable regulations.
If a battery appears unsafe, stop using it immediately. Move it away from flammable materials if it is safe to do so, place it in a fire-resistant or non-conductive area, and contact us for general guidance. Depending on the condition of the battery, you may also need to contact your local fire department non-emergency line or household hazardous waste facility.
The best option depends on your issue. Use the contact form or email support@18650batterystore.com for detailed technical questions, photos, order issues, or documentation. For simpler questions, you may call 1-800-547-3050 or text 678-846-3948.
Yes. Please contact us before purchasing if you are unsure about cell size, top style, protected versus unprotected configuration, chemistry, voltage, discharge rating, charging requirements, or device compatibility. Battery sales are final, so we would rather help you confirm the correct product before checkout.
Include the device model, existing battery marking, required cell size, voltage, chemistry, top style, protected or unprotected requirement, discharge-current requirement, charger model, and any space limitations inside the device or battery tray.
Contact us promptly with your order number and photos of the outside shipping box, shipping label, packing materials, and affected item. Keep the product and packaging until our team provides written instructions.
No. Battery sales are final. Lithium batteries and related electrical products are safety-sensitive, and once they leave our chain of custody we cannot verify their handling history, charge state, electrical condition, or use history. Please contact us before purchasing if you are unsure.
Do not ship a damaged, swollen, leaking, hot, smoking, punctured, or otherwise unsafe lithium battery unless our team has provided written instructions and the shipment is permitted under applicable transportation rules. Damaged lithium batteries can require special handling.
Yes. Commercial customers, resellers, OEMs, vape shops, battery pack builders, installers, and procurement teams can apply for a wholesale account. Include your company name, website, business type, expected monthly volume, target brands or sizes, and resale-certificate status.
Please contact us before visiting. Our address is listed for business and shipping correspondence, but retail pickup, in-person support, and warehouse access may be limited or unavailable depending on operations and safety requirements.
We are sincere about helping customers select the correct battery, charger, case, wrap, LiFePO4 battery, or pack-building supply. Send us your device details or project requirements before purchasing so we can help you avoid fitment, compatibility, and safety issues.