3.7v 14500 li-ion cylindrical rechargeable battery

No.

Item

Test Methods and Condition

Criteria

5.1

0.2C Capacity

0.2C

After standard charging, rest battery for 10min, then discharging at 0.2C to voltage 3.0V, recording the discharging time.

≥300min

5.2

1C Capacity

1C

After standard charging, rest battery for 10min, then discharging at 1C to voltage 3.0V, recording the discharging time.

≥54min

5.3

Cycle Life

Constant current 0.5C charge to 4.2V, then constant voltage charge to current declines to 0.01C, rest 10min,constant current 0.5C discharge to 3.0V,rest 10min. Repeat above steps till continuously discharging capacity Higher than 80% of the Initial Capacities of the Cells

≥300 times

5.4

Capability of keeping electricity

20±5°C, After standard charging, laying the battery 28days, discharging at 0.2C to voltage 3.0V, recording the discharging time.

≥240min