| Customization: | Available |
|---|---|
| Type: | Li-ion Battery |
| Cathode Material: | NCM |
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Factory Price High Quality Lithium Ion Battery cell 3.7V 18650 21700 2500mAh 2900mAh 3000mAh 3500mAh 4000mA for Flashlight, Remote control, Door lock, Radio, Camera
| Size | 21*70mm |
| Rated Voltage | 3.7V |
| Rated Capacity | 4000mAh |
| Internal Resitance | 12-15mΩ |
| Net Weight | 45-50g |
| Cut-off Discharge Voltage | 2.75V |
| Charge Upper Limit Voltage | 4.20±0.05V |
| Charging Time | 1.5 hours(with Efest battery charger) |
| Max Discharging Current | 30A |
| Continuous Discharging Current | 20A |
| Cycle Life | >500s |
| Standard charger | cc/cv(max ,charging rate 2A) |
| Warranty | 1 years |
| Operating Temperature | charge (0 ~ 45°C) |
| discharge (-20 ~ 60°C) | |
| Storage Temperature | within 1 month (-20~ 50°C) |
| within 3 months (-20~ 40°C) | |
| within 3 months (-20~ 20°C) |
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