Multi-purpose: The battery can be used for flashlights, headlights, doorbells, small fans, digital cameras, radios, toys, alarm clocks and other multi-purpose devices.

Portable: This battery is small and light, easy to carry, can be easily put in a pocket, backpack, and can be used anywhere.

Rechargeable: The 18650 battery has no memory effect and can be charged multiple times without frequent battery replacement.