Tag: 18650 lithium-ion batteries

18650 lithium-ion batteries are a type of rechargeable battery that is widely used in various applications such as flashlights, power banks, laptop batteries, electric vehicles, and many other electronic devices. The “18650” designation refers to the battery’s dimensions, which are 18mm in diameter and 65mm in length.

These batteries typically have a nominal voltage of 3.7 volts and a capacity ranging from 1000mAh to 3500mAh or more. They are popular because of their high energy density, long cycle life, and low self-discharge rate. They are also relatively lightweight and can provide high current output.

However, it’s important to note that 18650 lithium-ion batteries can be dangerous if not handled properly. They can explode or catch fire if they are overcharged, short-circuited, or exposed to high temperatures. It’s important to use only high-quality batteries from reputable manufacturers and to follow proper charging and storage guidelines to ensure their safe use.