21700 NCM Battery Cell 3.6V 5500mAh Lithium Ion Battery Cell With High Energy Density
The NCM 21700 3.6V 5500mAh lithium-ion battery cell is a high-capacity rechargeable cylindrical cell designed for applications requiring long runtime, stable discharge performance, and reliable energy output. Manufactured with advanced NCM chemistry, this 21700 lithium-ion cell delivers an excellent balance of energy density, cycle life, and safety performance.
The cell is suitable for a wide range of portable and industrial devices, including energy storage systems, medical equipment, smart devices, outdoor power supplies, and backup power systems. Its compact cylindrical structure enables flexible battery pack assembly for OEM and ODM applications.
- Advanced NCM lithium-ion chemistry
- High energy density and long cycle life
- Stable discharge performance
- Low internal resistance
- Suitable for custom battery pack assembly
- Ideal for portable energy and industrial applications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Model | CLT21700-55 | Nominal Voltage | 3.6V |
| Typical Capacity | 5500mAh | Nominal Capacity | 5300mAh |
| Typical Energy | 19.80Wh | Nominal Energy | 19.08Wh |
| Cathode Material | Hi-Ni | Energy Density | 264Wh/kg |
| Weight | ≤73g | Internal Resistance | ≤25mΩ |
| Limited Charging Voltage | 4.2V | End of Discharge Voltage | 2.5V |
| Upper Limit of Charging Voltage | 4.2V | Discharge Cut-off Voltage | 2.0V |
| Standard Charging Current | 0.5C (2675mAh) | Standard Discharging Current | 0.2C (1070mAh) |
| Max. Charging Current | 1C (5350mAh) | Max. Discharging Current | 2C (10700mAh) |
| Charging Temperature | 0~45℃ | Discharging Temperature | -20~60℃ |
- Energy storage systems
- Portable power stations
- Medical devices
- Solar energy storage
- Smart electronics
- Emergency lighting systems
- LED lighting equipment
Inner Packaging: Each battery cell is individually insulated to prevent short circuits. Cells are arranged in durable plastic trays or protective blister holders. Anti-static and shock-absorbing materials provide additional protection during transit.
Outer Packaging: Packed in strong export-standard corrugated cartons. Cartons are reinforced with protective foam or cushioning materials. Clear product labels and safety markings are applied on the outer cartons.
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