Kastar ultra slim USB rapid charger (0.59 inch), the slimmest Micro USB camera battery Charger. New smart slim USB charge design, easy to carry. Input: 5V 2A; Output: 8.4V 600mA. Can be powered by USB Wall & Auto Charger or a Computer, LED indicate Red light for charging; Green light for full-charge. With the newest generation of CPU control, automatic constant current control prevents battery from overcharging and short circuit. Patented charger with FCC, CE and ROHS certification. All items include 18-Month manufacturer warranty.