401220 3.7V 65 mAh Battery for BT earphone

NO.

Items

Specifications

1

Charge voltage

4.2V

2

Nominal voltage

3.7V

3

Nominal capacity

 65mAh  0.2C  Discharge (0.2C)

Minimum Capacity

65mAh@0.2C Discharge(0.2C)

4

Charge current

Standard Charging:： 0.2C   

     Rapid charge： 1.0C 

5

Standard Charging method

0.2C CC（constant current）charge to 4.2V,then CV(constant voltage 4.2V)charge till charge current decline to ≤0.02C

6

Charging time

Standard Charging： 3.0 hours (Ref.)

 Rapid charge： 2.0 hours (Ref.)

7

Max.charge current

1.0C

8

Max.discharge current

1.5C

9

Discharge cut-off voltage

3.0V

10

Operating temperature

Charging：  0℃ ～ 45℃

Discharging：  -20℃ ～ 55℃

11

Temperature

range for storage

less than 1 month

-20~+60℃

less than 3 month

-20~+40℃

less than 1 year

0~+25℃

12

Cell Weight

Approx：   3g

13

Cell Dimension

Length ：     21.5   Max (not including tabs)

Width：       12.0Max

Thickness ：  4.0Max