3.7V 4000mAh 35A INR21700-40T Rechargeable High Drain Battery Cell

Standard Battery Pack Li-ion

3.7V  /  4000mAh / 35A

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Electrical Parameters
Standard Capacity 4.0Ah
Standard Voltage 3.7V
Battery Resistance ≤9mΩ
Standard Charge Current 2A
Max. Charge Voltage 4.2±0.05V
Max. Discharge Current 35A
Off Discharge Voltage 2.5V
Cycle Life (500 Times) >3.2Ah
Charging Method CC-CV
Size 70*21(mm)±0.5
Weight 70g±0.5
Operating Temperature 0~45℃
Storage Temperature 0~45℃
Charge Performance
Charging Method CC-CV (constant voltage with limited current)
Standard charge CCCV, 2A, 4.20 V, 200mA cut-off
Rated charge CCCV, 6A, 4.20 V, 100mA cut-off
Charging time Standard charge : 180min / 200mA cut-off
Rated charge: 70min / 100mA cut-off
Discharge Performance
Max. Discharge Current 35A(Without temperature cut)
45A(With 80℃ temperature cut)
Suitable for industrial and high drain application, such as Power Tool, eBike, R/C Hobby, drones, robot etc.