Fenix ARB-L18-2600U USB Rechargeable Battery

It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. This battery can quickly be charged without the need for a separate charger.

This not only save you money from purchasing a charger, but also convenience of not having to carry around another device. This will work in all of the current models that utilise a Lithium-Ion 18650 battery. A micro-USB charging cord is NOT included.