Samsung INR21700-40T 4000mAh 35A Li-ion High Drain Battery

Samsung INR21700-40T Li-ion rechargeable battery with 4000mAh high capacity and 35A continuous discharge current
Standard Discharge Capacity
Min: 4000mAh
Charge: 0.5C (2A), 4.20V, 0.05C(200mA) cut-off
- Discharge: 0.2C (800mA), 2.5V cut-off
Typical Discharge Capacity
Min.: 3900mAh
- Charge: 6A, 4.20V, CCCV 100mA cut-off
- Discharge: 10A , 2.5V cut-off
Nominal Voltage
Standard Charge
CCCV, 2A, 4.2V, 200mA cut-off
Rated Charge
CCCV, 6A, 4.2V, 100mA cut-off
Charging Time
Standard charge : 180min / 200mA cut-off
Rapid charge: 70min / 100mA cut-off
Max. Continuous Discharge
35A (without temperature cut)
45A (with 80℃ temperature cut)
Discharge Cut-off Voltage
70g max.
70.30mm(H)*21.22mm(D) max.
Operating Temperature
Charge : 0 to 45℃
Discharge: -20 to 60℃
Storage Temperature
1.5 year 0~25℃
3 months 0~45℃
1 month 0~60℃

Application: Electric Bicycle, electric motorcycle, electric automobile, Electric scooter, power tools, drills, and other electronic devices that requires high performance, especially high capacity.
Notice: The cell is used for battery pack assembling, and it needs to add a protection circuit module before use.
We are capable of assembling customized battery pack by using these cells for you.