Product Name: 21700 4500mAh Li-ion Cell
Electrical Parameters:
| Parameter |
Value |
| Nominal Capacity |
4500mAh |
| Minimum Capacity |
4400mAh |
| Nominal Voltage |
3.6V |
| Charge Cut-off Voltage |
4.2V |
| Discharge Cut-off Voltage |
2.75V |
| Standard Charge Current |
0.5C (2250mA) |
| Max. Charge Current |
1C (4500mA) @ 10°C–45°C |
| Standard Discharge Current |
1C (4500mA) |
| Max. Discharge Current |
3C (13500mA) @ 0°C–35°C |
| Internal Resistance |
≤25mΩ (AC 1kHz) |
| Operating Temperature |
Charge: 0°C to 45°CDischarge: -20°C to 60°C |
| Cycle Life |
500 cycles (≥90% capacity retention)1000 cycles (≥80% capacity retention) |
| Weight |
≤71g |
| Dimensions |
21.65±0.2mm (D) x 70.95±0.2mm (H) |
| Energy Density |
238 Wh/kg |
Key Features:
- High energy density and long cycle life
- Stable performance across a wide temperature range
- Low internal resistance supports high discharge rates
- Standard 21700 cylindrical form factor
- Ideal for high-drain applications including power tools, electric vehicles, and energy storage systems
Applications:
- Electric vehicles and e-bikes
- Portable power stations
- High-drain consumer electronics
- Medical devices
- LED lighting systems
- UPS backup power units
Safety & Compliance:
- Built-in protection against overcharge, over-discharge, and short circuit
- Compliant with CE, RoHS, and UN38.3 certifications
- Stable NMC chemistry with high thermal reliability
Notes:
- All values are typical at 25°C and 1 atm unless specified.
- Performance may vary based on usage conditions and load characteristics.
- Refer to the full product specification sheet for detailed test conditions and limitations.
