Mybat Multi-Connector USB Battery Charger for Samsung Galaxy S II (T-Mobile) T989, Skyrocket i727, Galaxy Rugby Pro i547, Galaxy Nexus (Verizon) i515, Galaxy Nexus (Sprint) L700 Input voltage: AC100-240V; Output voltage: DC4.2-5.2V Output : 4.35V 350mA; USB Output: 5.2V 800mA Built-in smart IC chip for over charging protection; Charging stops once battery is full. Overcharge protection cut-off maintains the performance and life of the battery. USB port allows you to charge your phone simutaneously. (USB Cable not included); LED Indicators (Red charging / Blue full or idle)