History #

The 18500 battery is a type of lithium ion battery. It was first developed in the early 1990s, and was initially used in laptop computers and other small electronic devices. It has since become a popular choice for a wide variety of applications, including electric vehicles, power tools, and consumer electronics.

Typical Chemistry #

The 18500 battery is typically composed of an anode made of graphite, a cathode made of a lithium-based material, and an electrolyte composed of a lithium salt in an organic solvent. The battery is typically charged with a constant voltage of 4.2V, and has a nominal capacity of around 1000mAh.

Typical Use #

The 18500 battery is most commonly used in portable electronic devices such as laptops, cell phones, and digital cameras. It is also used in some electric vehicles, power tools, and consumer electronics. The battery is capable of providing a high level of power in a small form factor, making it an ideal choice for these applications.

Design #

The 18500 battery is typically cylindrical in shape, with a diameter of 18mm and a length of 50mm. It typically weighs around 40g, and has a nominal voltage of 3.7V. The battery is typically equipped with a protection circuit to prevent overcharging and overdischarging, and is often sold with a charger. The battery is also available in a variety of capacities, ranging from 600mAh to 3000mAh.