Nominal voltage: 3.7V
Charge cut-off voltage: 4.20V ±0.05V
Discharge cut-off voltage: 2.75V
Standard charging current: 2000mA (0.5C)
Cycle life: Capacity ≥80% after 500 cycles
Certifications: UN38.3, MSDS, CE, RoHS
Product Description
As the current mainstream "sweet spot" in the market, the INR21700 (4000–5500mAh) offers a perfect balance of size, weight, and energy density. As an experienced primary manufacturer of cylindrical ternary lithium batteries, we provide highly consistent 21700 battery pack solutions. From e-bikes to large-scale garden machinery, the 21700 is increasingly replacing the 18650 due to its higher capacity, significantly reducing the number of welding points in battery packs and enhancing overall reliability.
Product Specifications
| Key Specifications | Parameter |
| Model Number | INR21700-4000/5500mAh |
| Cell Type | NCM Ternary Power Lithium-ion |
| Nominal Capacity | 4000-5500mAh |
| Nominal Voltage | 3.7V |
| Charge Cut-off Voltage | 4.20V ± 0.05V |
| Discharge Cut-off Voltage | 2.75V |
| Standard Charging Current | 2000mA（0.5C） |
| Maximum Continuous Discharge | 10A - 15A |
| Charging Temperature Range | 0°C ~ 45°C |
| Discharging Temperature Range | -20°C ~ 60°C |
Nominal voltage: 3.7V
Charge cut-off voltage: 4.20V ±0.05V
Discharge cut-off voltage: 2.75V
Standard charging current: 2000mA (0.5C)
Cycle life: Capacity ≥80% after 500 cycles
Certifications: UN38.3, MSDS, CE, RoHS
Product Description
As the current mainstream "sweet spot" in the market, the INR21700 (4000–5500mAh) offers a perfect balance of size, weight, and energy density. As an experienced primary manufacturer of cylindrical ternary lithium batteries, we provide highly consistent 21700 battery pack solutions. From e-bikes to large-scale garden machinery, the 21700 is increasingly replacing the 18650 due to its higher capacity, significantly reducing the number of welding points in battery packs and enhancing overall reliability.
Product Specifications
| Key Specifications | Parameter |
| Model Number | INR21700-4000/5500mAh |
| Cell Type | NCM Ternary Power Lithium-ion |
| Nominal Capacity | 4000-5500mAh |
| Nominal Voltage | 3.7V |
| Charge Cut-off Voltage | 4.20V ± 0.05V |
| Discharge Cut-off Voltage | 2.75V |
| Standard Charging Current | 2000mA（0.5C） |
| Maximum Continuous Discharge | 10A - 15A |
| Charging Temperature Range | 0°C ~ 45°C |
| Discharging Temperature Range | -20°C ~ 60°C |
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