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China 18650 Li-ion Battery 3.7V 2600mAh - High Capacity Rechargeable Cell from Suppliers and Factory
Battery Type |
Li ion |
Nominal Voltage |
3.7V |
Nominal Capacity |
2600mAh |
Energy |
9.62Wh |
Standard Charge |
0.2C |
Standard Discharge |
1.0C |
Charge Voltage |
4.2±0.03V |
Voltage at End of Discharge |
2.75V |
Charge Temperature |
0 – 45℃ |
Discharge Temperature |
-20 – 60℃ |
Size |
18 × 65 mm |
Rough Weight |
45g |
Cycle Life |
1000 times |
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Frequently Asked Questions
Q
What is the nominal voltage and capacity of this 18650 Li-ion battery?
The battery has a nominal voltage of 3.7V and a nominal capacity of 2600mAh, delivering 9.62Wh of energy per cell.
Q
What are the safe charge and discharge temperature ranges?
This battery can be safely charged between 0℃ and 45℃. For discharging, the operating temperature range is -20℃ to 60℃, making it suitable for a wide range of environments.
Q
How long is the cycle life of this 18650 battery?
This Li-ion 18650 battery is rated for up to 1000 charge/discharge cycles, ensuring long-term reliability and cost-effectiveness for repeated use.
Q
What is the correct charge voltage for this battery?
The recommended charge voltage is 4.2V ± 0.03V. Exceeding this voltage may damage the battery or reduce its lifespan. Always use a compatible charger designed for Li-ion cells.
Q
What are the physical dimensions and weight of this battery?
The battery measures 18 × 65 mm in size and weighs approximately 45g, which is the standard 18650 form factor widely used in flashlights, power banks, and other portable devices.
Q
What is the cut-off voltage at the end of discharge?
The end-of-discharge voltage is 2.75V. Discharging below this threshold can permanently damage the battery cells and significantly reduce overall capacity and cycle life.