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Rechargeable 18650 Li-ion Battery 3.7V 2600mAh - China Suppliers & Factory Direct Supply
| 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 | 18×65mm |
| Rough Weight | 45g |
| Cycle Life | 1000 times |
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Frequently Asked Questions
What is the nominal voltage and capacity of this 18650 battery?
This 18650 lithium-ion battery has a nominal voltage of 3.7V and a nominal capacity of 2600mAh, delivering 9.62Wh of energy per cell.
What is the safe charge and discharge temperature range?
The battery can be safely charged within a temperature range of 0–45℃. For discharging, the operating range is wider, from -20℃ to 60℃, making it suitable for a variety of environments.
How long is the cycle life of this 18650 Li-ion battery?
This battery is rated for up to 1000 charge/discharge cycles, offering excellent long-term durability and cost efficiency for high-frequency applications.
What are the physical dimensions and weight of the battery?
The battery measures 18×65mm in size and weighs approximately 45g, conforming to the standard 18650 form factor for easy integration into compatible devices.
What is the maximum charge voltage for this battery?
The maximum charge voltage is 4.2±0.03V. It is important not to exceed this voltage to ensure battery safety and longevity. The end-of-discharge cutoff voltage is 2.75V.
What applications is this 18650 2600mAh battery suitable for?
Thanks to its stable 3.7V output, 2600mAh capacity, wide discharge temperature range, and 1000-cycle life, this battery is well-suited for flashlights, power banks, electric tools, laptops, medical devices, and other portable electronics.