21700

Lithium ion battery 3.7V 21700 4Ah 5C 20A discharge cylindrical batteries

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Product Description

Specification
Model 21700
Nominal Capacity 4000mAh@ 0.2C
 Discharge
Nominal Voltage 3.65V@0.2C
Max. Charge Current 0.5C (2A)
Max Continuous Discharge Current  3C (12A)
Max Pulse Discharge Current  5C(20A)
Charge Voltage 4.20V
Charging method CC-CV
Charging time Standard charge : 5hours
Rapid charge : 2.5hours
Weight 70g
Max Dimension 21.7*70.9mm
Operating Temperature Discharge:-20℃~ 60℃
Charge: 0 ℃~ +45℃
Storage Temperature 1 month: -20°C ~ 60°C
3 month: -20°C ~ 40°C
12 month: -20°C ~ 20°C

 

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