Fenix ARB-L14-1600U Built-in USB Rechargeable Battery

ARB-L14-1600U is a high capacity 14500 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. 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 models that utilize the standard AA battery. This battery is a great rechargeable alternative to alkaline AA battery.

Micro-USB charging port
1600mAh high capacity
Protection circuitry to prevent short circuits
Pressure vents to prevent explosions
500 charge cycles
Indicator light on battery is red while charging, blue when charged
Voltage: 1.5V
Charging Current: Only charge using a USB cable to the micro USB port on the battery. Do not charge by other device
Charging Current USB Port: 300mA
Weight: 0.67 ounces (19g)
Size: Length: 1.97″ (50mm) Diameter: 0.57″ (14.5mm)