Best Quality 3.7V 2200mAh LI-ion Battery 18650 (Hongli):

Here's some information about this particular battery:

1. Size and Shape:
   • The "18650" designation refers to the size of the battery. An 18650 battery is cylindrical in shape, and its dimensions are approximately 18mm in diameter and 65mm in length.
2. Chemistry:
   • The "Li-ion" designation indicates that it is a lithium-ion battery. Lithium-ion batteries are known for their high energy density, which makes them popular for use in various electronic devices.
3. Capacity:
   • The "2200mAh" specification denotes the capacity of the battery. The capacity is measured in milliampere-hours (mAh), and it represents the amount of charge the battery can hold. In this case, the battery has a capacity of 2200mAh, meaning it can theoretically provide a current of 2200mA (or 2.2 amps) for one hour.
4. Voltage:
   • The nominal voltage of a single lithium-ion cell is around 3.7 volts. Therefore, an 18650 Li-ion battery typically has a nominal voltage of 3.7V.
5. Application:
   • 18650 batteries are commonly used in a wide range of electronic devices, including but not limited to laptops, flashlights, power banks, cordless power tools, and electric vehicles. The high energy density and rechargeable nature of lithium-ion batteries make them suitable for various portable and rechargeable applications.
6. Rechargeable:
   • Being a lithium-ion battery, the 18650 2200mAh battery is rechargeable. It can undergo multiple charge and discharge cycles before reaching the end of its useful life.
7. Charging and Discharging:
   • It's important to use a compatible charger designed for lithium-ion batteries when charging 18650 batteries. Additionally, it's crucial to adhere to the manufacturer's recommendations regarding the discharge current and operating conditions.
8. Safety Considerations:
   • Lithium-ion batteries should be handled with care, and safety precautions must be observed to prevent overcharging, over-discharging, and physical damage, which could lead to safety hazards.