The most important part of buying your 18650 battery is choosing the right one. 18650 3.6V Li-Ion Rechargeable Batteries come in various versions with different lengths and different positive terminals, some with built in protection some without. There is a slightly raised button top terminal or an industrial flat top. Please check the battery in your equipment to ensure you order the correct battery. The battery you are looking at here is the Ansmann 18650 Raised Button Top with built in protection making it 70mm long. Â The Ansmann 18650 3.6V Li-Ion Rechargeable Battery 2600mAh Raised Button Top is individually blister packed. Perfect for use in devices such as cameras, torches and electronic cigarettes. This battery can be recharged fully in approximately 3Â hours using the Ansmann 18650 Li-Ion Battery Charger. Â Raised button top battery Compatible Voltage: 3.63V Capacity: 2600mAh Maximum output current: 5.0A Maximum charging current: 2.5A Diameter x Height: 18.8mm x 70mm No memory effect Long service life Low Self Discharge Please note these Ansmann 18650 batteries do not fit in the Uniross branded charger. Please use with the Ansmann 18650 Charger. Â Compare prices from: Ansmann in Electric & Electronics Components