Varta 18750 is a type of cylindrical lithium-ion battery, often used in medical, industrial, military and consumer applications. Its size is 18mm in diameter and 75mm in length, making it one of the smaller sizes of lithium-ion batteries. One of its advantages is that it’s lightweight and can store up to 10 Wh of energy in a very small package. Its impressive energy density and negligible memory effect make it popular in many devices, including cameras and remote-controlled toys. It's available in various shapes and capacities, from 500mAh to 14 000mAh, and is increasingly being used as an emergency power supply for various applications. Despite its small size, the 18750 Varta battery provides good performance and a long life.