The Fenix ARE-X2 is an advanced USB charger, designed for convenience with a compact, lightweight design. It's compatible with a wide array of batteries such as 18650, 16340, 14500 or 26650 and can charge two batteries at the same time. The USB function can charge as well as discharge, so it can be used to charge batteries or power small USB devices - great for long hiking, camping or backpacking trips! Specifications: * Input: DC 5V, Maximum 1.5A * Output: ++++ DC 5V, 1.5A: 18650, 26650 ++++ DC 5V, 1.0A: 16340, 14500, 10440 * Size: 4.5 inches (115mm) X 2.5 inches (63mm) X 1.2 inches (30mm) * Weight excluding battery and charging cable: 3.4 oz. (96 grams)

Features:
* Micro-computer chip controlled digitally regulated charging to extend battery lifespan
* Supportable Micro USB charging and USB discharging
* Preferred discharging channel will be the left slot. If the left slot does not contain Li-ion battery, then the right channel will be checked for a Li-ion battery. If there is a Li-ion battery in the right channel, then the right channel will chosen to discharge.
* When discharging voltage is 3.0V, discharging will cease.
* Blue LED flashes when discharging starts. Turns off when discharging is complete.
* Ni-MH and Ni-CD batteries NOT compatible with discharging feature, unable to charge devices using those batteries.
* Can discharge with a single battery
* LED charging/discharging indicator
* LED battery power indicator
* Four levels of security
* Automatically chooses correct charging mode for each battery
* Two channels work independently
* Allows simultaneous charging of different battery types