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18650

3C discharge 18650 2500mAh lithium Cell

3C discharge 18650 2500mAh lithium Cell
3C discharge 18650 2500mAh lithium Cell
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3C discharge 18650 2500mAh lithium Cell

Description

What is an 18650 Battery?


The 18650 battery is a lithium-ion rechargeable battery originally developed by Sony Corporation in Japan. The name "18650" refers to the battery's dimensions: 18mm in diameter and 65mm in length, with the "0" indicating that it is a cylindrical cell. Due to its excellent performance and versatility, the 18650 battery has become one of the most widely used types in the battery industry today.

  1. Main Features


  • High Energy Density: 18650 batteries offer a high energy density, allowing them to store a large amount of energy in a relatively small size.


  • Long Lifespan: With proper usage and maintenance, 18650 batteries have an extended cycle life, supporting numerous charge and discharge cycles.


  • S

  • afety: With advancements in technology, the safety features of 18650 batteries have greatly improved. These include overcharge protection,

  • over-discharge protection, and short-circuit protection.


  • Wide Applications: Thanks to their superior performance, 18650 batteries are commonly used in a variety of electronic devices, such as flashlights, laptops, and electric vehicles


  • Voltage: The nominal voltage of an 18650 lithium-ion battery is typically 3.7V, and it can reach up to 4.2V when fully charged.


  • Capacity: The capacity of a standard 18650 lithium battery ranges from approximately 1500mAh to 3500mAh, depending on the brand and model.


  • Charging Time: 18650 lithium batteries generally require 2 to 3 hours to fully charge, depending on the charger’s power output and the battery’s capacity.



Specifications / 规格Remark / 备注

1Nominal Capacity2500mAhStandard discharging method
2Minimum Capacity2490mAh-
3Nominal Voltage3.7VMean Operation Voltage
4Delivery voltage3.6 - 3.7VWithin 10 days from Factory
5Charge Voltage4.2V ± 0.03VBy standard charge method
6Standard charging method0.5C constant current, 4.2V constant voltage charge to 4.2V, continue charging till current decline to ≤0.01C, time about 3h(Ref)
0.5C = 1250mA
Standard charge, charge time about 3h (供参考)
7Charge current1.0C = 2500mA (Rapid Charge, charge time about: 1.5h(Ref))Rapid Charge, charge time about: 1.5h(Ref)
8Standard discharging method0.5C constant current discharge to 2.75V-
9Cell Internal Impedance≤30mΩ(不含 PTC)Interal resistance measured at AC 1KHz after 50% charge
10Weight46 ± 2g-






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