Kastar Travel Charger for Nikon EN-EL9, EN-EL9a, MH-23 work with Nikon D3000, D5000, D40, D60, D40X SLR Cameras Kastar Mini Rapid A/C Charger Features a Fold-out US Plug, 110-240V Worldwide Input Voltage. Charger indication Green lights for standby, Red is for charging. Which can prevent the overcharge and overdischarge. Fast charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock. The charger is for charging your battery only. It does not work as AC adapter for your digital camera or camcorder. All Items Include 30-day Money Back and 3-YEAR Manufacturer Warranty.