Sony 21700 VTC6A 4000mAh 40A 3.7V Battery 21700 Lithium Battery 21700 VTC6A 4000mAh
| Item of Sony battery | Condition/Note | Specification |
| 21700-4000mAh battery | Nominal Capacity | 4000mAh |
| Norminal Voltage | 3.7V | |
| Standard charge | constant current | 0.2C |
| constant voltage | 4.2V | |
| end current(cut off) | 100mA | |
| battery fast charge | constant current | 1C |
| constant voltage | 4.2V | |
| end current(cut off) | 100mA | |
| Standard discharge | constant current | 30A |
| end voltage(cut off) | 2.5V | |
| Fast discharge | end voltage(cut off) | 2.5v |
| Maximum discharge Current | pulse current | 40A |
| 3.7V 18650 battery weight | approximate | 70g |
| Operating temperature | charge | 0-60 °C |
| discharge | -20-60 °C | |
| Storage temperature | 1 month | -20-45 °C |
| 6 months | -20-35 °C | |
| 1 year | -20-30 °C | |
| Efan battery dimention (Diameter & Height) | D21.35±0.2mm | |
| H69.8±0.2mm | ||
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What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
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