Aspire 40A (4000mAh) 21700 Battery


We currently have 37 in stock.

For use with 21700 battery devices only. Aspire 21700 3.7V 4000mAh rechargeable battery cells are made for normal discharge current (max. 40A) usage.

  • Model: INR 21700  3.7V Li-ion
  • Rated Capacity: 4000mah
  • Nominal Voltage: 3.7V
  • Cell Size: 21mm x 700mm

Some batteries are 3800 mAh