EFAN 21700 3750mAh 40A Battery
EFAN 21700 3750mAh 40A Battery
EFAN 21700 3750mAh 40A Battery
EFAN 21700 3750mAh 40A Battery
EFAN 21700 3750mAh 40A Battery
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EFAN 21700 3750mAh 40A BatteryEFAN 21700 3750mAh 40A BatteryEFAN 21700 3750mAh 40A BatteryEFAN 21700 3750mAh 40A BatteryEFAN 21700 3750mAh 40A Battery
EFAN

EFAN 21700 3750mAh 40A Battery

$10.99
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Description

EFAN 21700 3750mAh 40A Battery


Specifications:

  • Model: EFAN-3750mAh
  • Size: 21700
  • Style: Flat Top
  • Nominal Capacity: 3750mAh
  • Continuous Discharge Rating: 25A
  • Pulse Discharge Rating: 40A
  • Nominal Voltage: 3.7V
  • Protected: No
  • Rechargeable: Yes

All batteries contain a label decal stating the approximate voltage and capacity. This label is easily removed to reveal the manufacturer print. The label decal is a requirement by the U.S. Government (IATA) which regulates the shipping of lithium ion batteries.

WARNING:

The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. This battery is sold for the use of system integrations with proper protection circuitry or battery packs with a battery management system or PCB (circuit board/module). Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. Charge only with a smart charger designed for this specific type of lithium ion battery.

  • Misusing or mishandling lithium ion batteries can pose a SERIOUS RISK of personal injury, property damage, or death
  • BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
  • ONLY use with proper protection circuitry
  • ONLY use within manufacturer specification
  • DO NOT store loose in pocket, purse, etc. – always use a protective case
  • KEEP AWAY from metal objects to prevent short circuiting
  • DO NOT short circuit
  • DO NOT use if wrapper or insulator is damaged or torn
  • DO NOT use if damaged in any way
  • DO NOT overcharge or over-discharge
  • DO NOT modify, disassemble, puncture, cut, crush, or incinerate
  • DO NOT expose to liquids or high temperatures
  • DO NOT solder
  • User must be familiar with handling lithium ion batteries before purchase
  • Usage of batteries is AT YOUR OWN RISK

Local regulations and laws pertaining to the recycling and disposal of lithium ion batteries vary so please consult your local jurisdiction regarding appropriate disposal. Many retail stores offer free recycling of rechargeable batteries.

Frequently Asked Questions

Find answers to common questions about our products

Yes. All cells we sell are guaranteed authentic, Grade A, and brand new. Not reclaimed, used, or rewrapped. We also prioritize fresh manufacturing dates, so you’re not receiving cells that have been sitting around for years.

Some sellers offer Grade B cells that can have inconsistent voltage, higher internal resistance, reduced performance, or other issues. You will never receive a Grade B, reclaimed, or used cell from us.

These are sold as bare cells (no welded tabs or leads) unless the listing explicitly states otherwise.

To make pack building easier, our cells are sorted and batched for matching internal resistance, voltage, and date code, so they arrive ready to be assembled into a pack.

U.S. orders ship from Atlanta, Georgia.

For international orders outside the USA, we may ship from a different fulfillment hub depending on the product’s manufacturing location, to ensure faster and more efficient delivery.

Shipments within the USA, delivery in 1–3 days (up to 5). Expedited shipping available. International shipping varies—contact us to inquire.

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