Brand / Model
Samsung SDI INR21700-50S
Cell Type
21700 cylindrical lithium-ion rechargeable cell
Standard Discharge Capacity
Typical 5000mAh after 2.5A charge and 1A discharge to 2.5V
Rated Discharge Capacity
Minimum 4800mAh after 6A charge and 10A discharge to 2.5V
Discharge Cut-Off Voltage
2.5V
Standard Charge
2.5A CCCV to 4.20V, 250mA cut-off
Rated Charge
6A CCCV to 4.20V, 100mA cut-off
MAX CHARGE CURRENT
10A for step charge; 6A continuous charge
MAX CONTINUOUS DISCHARGE
25A without temperature cut-off
Temperature-Cut Discharge
45A with 80°C temperature cut-off and re-discharge release below 50°C
Initial Internal Impedance
≤14mΩ AC at 1kHz after rated charge
Cycle Criteria
≥2940mAh after 250 cycles at 25A discharge; ≥2940mAh after 100 cycles at 45A discharge with 80°C cut-off
STORAGE RETENTION
Recovery capacity ≥4320mAh after 30 days at 60°C under the rated storage test
Ambient Operating Temperature
Charge: 0°C to 60°C; Discharge: -20°C to 60°C
Surface Operating Temperature
Charge: 0°C to 60°C with recommended recharge release below 45°C; Discharge: -20°C to 80°C with re-discharge release below 60°C
Dimensions
21.25mm max diameter × 70.62mm max height, with tube
