4000mAh Li-Ion Battery 21700 3C Grade Original Capacity

 4000mAh Li-Ion Battery 21700 3C Grade Original Capacity 

4000mAh capacity and 3.7V nominal voltage, this battery offers excellent energy density. Therefore, it’s an ideal choice for electric vehicles (EVs), e-bikes, power tools, flashlights, and custom battery packs.

Moreover, its compact cylindrical design (21700 format) ensures flexible integration into various devices while providing more power than traditional 18650 cells.

Key Features:

Capacity: 4000mAh
Voltage: 3.7V nominal
Type: Rechargeable Lithium-Ion
High energy density
Stable discharge rate
Long cycle life
Suitable for high-drain devices

Package Includes:

1 x 4000 mAh 21700 3.7 V Lithium-ion Battery