Onite Universal Battery Charger with USB Output Port for 3.8V High-voltage Battery of Samsung Galaxy S2 S3 S4 J5, Note 2 3, Edge, Mega, LG Optimus G G2 G3 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 length of the battery you are trying to charge should be between 42 and 70mm. Built-in protection circuit prevents overcharging. Smart LED indicator shows charging status.8 Hours Aging test, to ensure that each charger is of good quality. 24-Month Warranty. Any quality issues, we can send you a new one in 3 days without returning. **Important Note:The Onite Charger is suitable only for batteries with terminals on the top or bottom. It is not suitable for batteries with terminals on the front or back