SureFire Rechargeable 123A Lithium Ion Battery 3.6V USB-C

The SureFire rechargeable 123A is a protected lithium ion RCR123 battery with 900 mAh capacity and a built in USB charge port. Plug it into any USB power source, such as a wall charger, a laptop, a power bank or a car USB port, using the included USB-A to USB-C cable.

An external RCR123 compatible CC-CV cradle charger, not included, can also charge it, and may do so faster if it is set up for that. Its 3.6V is a higher voltage that gives increased output in compatible products. Check that your light is rated for a 3.6V RCR123 before you swap one in.