Item

Spec

Note

Model

13212223/50000mAh

Charge
Voltage

4.2V

End-of-charge voltage

4.2V

CC\CV

Nominal
Voltage

3.7V

Cell Voltage between 3.6V ~3.9V before shipping

Nominal
Capacity

≥50000mAh@ 0.2C Discharge

Nominal Capacity refer to the capacity of 0.2C discharge with 2.75V cut-off voltage, after charging with standard method.

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 2.75V
The cycle life is the cycle times when
the discharge capacity is about 80% of the rated capacity.

Self-discharge

Residual Capacity>90%

After standard charging, storied at
25°C±0.5°C for 30 days, then measure the capacity as item 4.

Impedance

Typical:8mΩ
Max: 10mΩ

After standard charging, measure the internal resistance with AC1KHz

Max. Charge
Current

1.0C

Max. Discharge Current

1.0C

Discharge Cut-off Voltage

2.75V

Operating
Temperature

Discharge:-10℃~ +60℃
Charge: 0 ℃~ +45℃

Cells must be storied at 3.6V-3.9V. During long period storage, cells should be maintained every 90 days. The method is to do a charge-discharge cycle with standard method, then charge to 3.7—3.9V.

Storage
Temperature

-20 ℃~+45℃

Cell Weight

Approx 1.4Kg

Cell
Dimension

Length：225mm Max
Width：212mm Max
Thickness：13.5mm Max

Measured with weighting 300gf at
25℃± 0.5℃ Not including Tabs