free-form lithium polymer battery

Item

Spec

Note

Charge Voltage

4.2V

Overcharge protection voltage

4.28±0.08V

Nominal Voltage

3.7V

The average value of voltage during the discharge period (with standard charge and discharge). When shipping, the voltage without load is between 3.6V and 3.85V.

Nominal Capacity

Typ:105mAh@ 0.2C

Discharge

Min:105mAh

Nominal Capacity refer to the capacity of 0.2C discharge to 2.8V cut-off voltage, after charging with standard method.

Charge Current

Cell surface Temperature

Charge Current

<0ºC

Charge shall be prohibited

0ºC~10ºC

0.1C Max

10ºC~15ºC

0.2C Max

15ºC~25ºC

0.5C Max

25ºC~45ºC

0.5C Max

Standard Charging method

CC/CV

0.2CCC(constant current) charge to, thenCV(constant voltage 4.2V) charge till charge current decline to ≤ 0.05C

Cycle Life

³ 500 Times

One cycle refer to one charge period and then one discharge period.

Test condition:

Charge:0.2C to 4.2V

Discharge: 0.2C to 2.8V

The cycle life is the cycle times when the discharge capacity is about60% of the rated capacity.

Initial

Impedance

£380mΩ

Internal resistance measured at AC 1KHz after50% charge

Max. Discharge Current

0.5C

Discharge Cut-off Voltage

3.0V

Operating Temperature

Discharge: -10℃~ +60℃

Charge: 0℃~ +45℃

long term storage temperature

-5 ℃~+35℃

Relative humidity: 45~75%RH

Voltage:3.8±0.1V

Cells must be stored at 3.6V ~ 3.85V. Over long storage periods cells should be cycled every 90 days. The method is to do a charge-discharge cycle with standard method, then charge to 3.6V ~ 3.85V.