RoundGMB453735-530mAh-3.7V

3. Specification
3.1 Assembled cell parameters
1, Charge Voltage 4.2V
2, Overcharge protection voltage   4.28±0.08V
3, 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.
4 ,Nominal Capacity
Typ:530mAh@ 0.2C
Discharge
Min:510mAh
Nominal Capacity refer to the capacity of 0.2C discharge to 2.8V  cut-off voltage, after charging with  standard method.
5 ,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    1.0C Max
6, Standard Charging     method CC/CV
0.2CCC(constant current) charge   thenCV(constant voltage 4.2V)  charge till charge current decline to  ≤ 0.05C
7 ,Cycle Life ≥ 300 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  about 75% of the rated capacity.
8 ,Initial
Impedance  ≤250mΩ Internal resistance measured at AC
1KHz after50% charge
9, Max. Discharge Current 1.0C

10 ,Peak discharge current
Peak current 2A end voltage3.0V for 10ms
11, Discharge Cut-off  Voltage  3.0±0.08V
12 ,Operating Temperature   Discharge: -10℃~ +60℃   Charge: 0℃~ +45℃
13, 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.
14, Cell Weight Approx:12g
15 ,PCM GMB-ML09FF(TM)
16 ,Assemblage Dimension
         Length:35.0mm Max
         Width:37.0mm Max
         Thickness:4.5mm Max
Measured weight of 300gf at 25℃±1℃.Not including battery drawing line.