... .ItemTest Methods and ConditionCriteria5.10.2C Capacity0.2CAfter standard charging, rest battery for 10min, then discharging at 0.2C to voltage ... .0V, recording the discharging time.≥300min5.21C Capacity1CAfter standard charging, rest battery for 10min, then discharging at 1C to voltage 3 ... , then constant voltage charge to current declines to 0.01C, rest 10min,constant current 0.5C discharge to 3.0V ...