Kastar NPBK1 Battery Charger for Sony NP-BK1 Battery and Sony Cybershot DSC-S780 S750 Digital Camera This Kastar battery charger with foldable flat pin for easy storage Charger Input Voltage: AC 100~240V 50~60 Hz; Output Voltage: DC 4.2V 0.6A Smart charging LED indicator: Green light is for standby; Red is for charging Charger compatible with Olympus Li-50B / Sony NP-BK1 batteries Package includes: 1 battery charger, 1 car adapter and 1 European plug