Popular Long Cycle Life Lithium 21700 Cell 3.7V NCM 4000mAh 5000mAh Li-ion Rechargeable Battery

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 4000mah 21700 cell: 

Nominal capacity:4000mAh

Charge: 0.5C (2000mA), CCCV, 4.2V  0.02C (80mA) cut-off;

Discharge: 0.2C (800mA),2.75V discharge cut-off

Minimum capacity: 3900mAh

Energy density: 208Wh/Kg

Nominal voltage: 3.60 V

Internal resistance: ≤ 25mΩ (AC Impedance, 1000 Hz)

Charge cut-off voltage: 4.20V

Discharge cut-off voltage: 2.75V

Charging cut-off current: ≥0.02C (80mA)

Standard charging current: 0.5C (2000mA)

Standard discharge current: 1C (4000mA)

Max. charge current: 1C (4000mA) 45°C>T≥15°C; 0.5C (2000mA) 15°C>T≥5°C; 0.1C (400mA) 5°C>T≥0°C

Max. discharge current: 1C (4000mA) 60°C >T≥45°C; 2C (8000mA) 45°C >T≥35°C; 3C (12000mA) 35°C >T≥0°C; 1C (4000mA) 0°C>T≥-20°C

Working temperature: Charge: 0~45°C Discharge: -20~60°C

Cell dimensions: Height: 70.95±0.2mm Diameter: 21.65±0.2mm

Weight: ≤71g

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5000mah 21700 cell:

Nominal capacity: 5000mAh

Charge: 0.5C (2500mA), CCCV, 4.2V, 0.02C (100mA) cut-off;

Discharge: 0.2C (1000mA),2.5V discharge cut-off

Minimum capacity: 4850mAh

Energy density: 253Wh/kg

Nominal voltage: 3.60V

Internal resistance: ≤ 25mΩ (AC Impedance, 1000 Hz)

Charge cut-off voltage: 4.20V

Discharge cut-off voltage: 2.50V

Charging cut-off current: ≥0.02C (100mA)

Standard charging current: 0.5C (2500mA)

Standard discharge current: 1C (5000mA)

Max. charge current: 1C (5000mA) 45°C>T≥15°C; 0.5C (2500mA) 15°C>T≥5°C; 0.1C (500mA)

5°C>T≥0°C

Max. discharge current: 0.5C (2500mA) 60°C >T≥45°C; 1C (5000mA) 45°C >T≥35°C; 2C (10000mA) 35°C >T≥0°C; 1C (5000mA) 0°C>T≥-20°C

Working temperature: Charge: 0~45°C Discharge: -20~60°C

Cell dimensions: Height: 70.95±0.2mm Diameter: 21.65±0.2mm

Weight: ≤73g