Lithium Ion Battery Pack with External PCB and Hard Casing for GPS Devices

NO

Items

Criteria

Remarks

1

Weight (g)

Approximate  315g

2

Typical Capacity

 20400  mAh

0.2C charge and 0.5C discharge for cut-off voltage

3

Nominal Voltage

 3.70V

4

Internal Impedance

≤ 80 milliohm

AC 1KHz after standard charge

5

Charge voltage

 4.20V

6

Standard charge current

 10A

CC/CV

Constant current 0.2CmA, Constant voltage 4.2V for 6.0hours

7

Max. charge current

   20A

8

Standard dis-charge current

   4A

9

Max. discharge current

   20A

10

Discharge cut-off voltage

  2.75V

11

Operating Temperature

0~+45°C

Charging

-20~+60°C

Discharging

12

Storage Temperature

within 1 month:

-5 °C~+45°C

Relative humidity:

65±20%RH

within 3 months:

-5 °C~+35°C

within 6 months:

0 °C~+35°C

13

Cycle life

> 500 times

After 500 times of cycle, remaining capacity up to 80%