12/08/2026
Brand / Model TENPOWER INR21700-50XG
Cell Type 21700 cylindrical rechargeable lithium-ion cell
Nominal Capacity 5000mAh
Minimum Capacity 4950mAh after standard charge and 0.2C discharge to 2.5V
Nominal Voltage 3.6V
Charge Voltage 4.20V; product listing notes 4.25V maximum
Discharge Cut-Off Voltage 2.50V
Standard Charge 2.5A / 0.5C CCCV to 4.2V, 100mA cut-off
Maximum Charge Current 15A
Maximum Continuous Discharge 40A without temperature cut-off; 90A with 75°C temperature cut-off
Pulse Discharge Current 140A for 3 seconds
Cycle Life ≥60% initial capacity after 500 cycles under 6A charge and 40A discharge to 2.5V or 75°C cut-off
Internal Impedance ≤4mΩ AC at 1000Hz, 25±3°C, 30% SOC
Operating Ambient Temperature Charge: 0°C to 45°C; Discharge: -20°C to 60°C
Cell Surface Temperature Charge: 0°C to 60°C, recommended recharge release
