No.

Item

Specifications

Remark

1

Rated capacity

Normal:4000mAh

0.2C rate discharge after standard charge

2

Nominal voltage

3.7V

Mean operation voltage during standard

discharge after standard charge

3

Voltage at end of discharge

2.75V

Discharge cut-off voltage

4

Charging voltage

4.2V

5

Impedance

≤55mΩ

6

Standard charge

Constant current 0.2C 

Constant voltage 4.2V

Cut-off current≤0.02C 

7

Standard discharge

Constant current 0.2C 

End voltage 2.75V

8

Fast charge

Constant current 0.5C 

Constant voltage 4.2V

Cut-off current≤0.02C 

9

Fast discharge

Constant current 0.5C 

End voltage 2.75V

10

Maximum continuous discharge current

2.0C 

11

Operation

Charge: 0~45°C

60±25%R.H

temperature range

Discharge: -20~60°C

12

Cycle life

>300cycles

Charging/discharging in the below condition:

Charge: standard charge

Discharge:0.2C5A to 2.75V

Rest time between charge/discharge:30min

Until the discharge capacity <60% of NC

13

Storage

≤1 month: -20 ~ 45°C

60±25%R.H,

temperature

≤3 months: -20 ~ 40°C

Best 10~25°C for long-time storage

≤1 year: 0 ~ 30°C

14

Weight

Approx: 70g

15

Dimension(mm)

Thickness*Width*Length

8*50*80(mm)