The 18650 battery is a popular type of lithium-ion rechargeable battery known for its versatility and high energy density. Named after its dimensions, with an 18mm diameter and 65mm length, the 18650 battery is widely used in various electronic devices, ranging from laptops and power tools to flashlights and electric vehicles.
One of the key advantages of the 18650 battery is its high energy storage capacity relative to its size. This makes it an ideal choice for applications where a compact and lightweight power source is required, yet high energy output is essential. Additionally, 18650 batteries are known for their relatively long lifespan and stable performance over numerous charge-discharge cycles.
These batteries typically have a nominal voltage of 3.7 volts and a capacity that can vary depending on the specific chemistry and manufacturer. Capacities often range from around 2000mAh to over 3500mAh, with higher capacities offering longer runtime between charges.
Safety features are also incorporated into many 18650 batteries, including protection against overcharging, over-discharging, and short circuits. This ensures the safe and reliable operation of devices powered by these batteries.
18650 Battery Charger
The 18650 requires a specific charger and they normally charge slowly unless otherwise specified. You may not need a charger as the devices which often use this cell have a way to charge themselves. So instead of a sealed electric shaver you get access to the battery to replace it. However the shaver has a cable attachment which charges the 18650 internally.
Overall, the 18650 battery's combination of high energy density, reliability, and safety features has made it a preferred choice for a wide range of applications in both consumer electronics and industrial sectors.