Customization: | Available |
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Type: | Li-ion Battery |
Cathode Material: | NCM |
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18 Years Factory Price 3.7V Li-ion Lithium Battery cell 18650 21700 2000mAh 2500mAh 2900mAh 3000mAh 3500mAh 4000mA 5000mA Lithium Battery
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) |