FENIX 2600MAH USB 18650 RCHRGBL BAT

FENIX USB Rechargeable 18650 Battery, Micro USB Charging Port, 2600mAh, 3.6V, Black FX-ARBL182600U
ARB-L18-2600U is a high capacity 18650 Li-ion rechargeable battery with a built-in micro-USB charging port. 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.