Official specifications:

Nominal capacity; 1500mAh

Minimum capacity: 1450mAh

Charging voltage: 4.2V +/-0.05V

Nominal voltage: 3.6V

Charging method: CC-CV with 100mA cut-off

Charging current: Standard: 0.75A, Rapid: 4A

Maximum discharge current: 23A

Discharge cut-off: 2.5V

Cycle life: 250 cycles to 60% at 23A discharge and 0.75A charge.

Operating temperature: Charge: 0°C ~ 50°C, discharge: -20°C ~ 75°C

Storage temperature: 1 month: -30°C ~ 60°C, 3 months: -30°C ~ 45°C, 1 year: -20°C ~ 25°C