Bastex TWO (2) Spare 3200 mAh Batteries for Samsung Galaxy Mega and one Universal Wall Battery Charger with USB Output Port Universal Charging: Adjustable dock fits over 90% of removable phone batteries and charges via a wall outlet, freeing up your phone for other things. Input: AC 100 - 240V/50 - 60Hz/200mA; Output: DC4.35V -600mA(Battery) /DC5.2V-1000mA(USB).The width of the battery you are trying to charge should be between 32 and 66mm (1.26 to 2.60 inches) Quick charging. Built-in protection circuit prevents overcharging. Smart LED indicator shows charging status. Free Bastex Cleaning Cloth! 2 extra batteries so you can keep one in your phone, charge another, and have a third ready to go!