Portable AC Li-ion Battery Charger for SONY NP-FM30 NP-FM50 NP-FM50B9547 Our 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. 30 Days Money Back Guarantee & 12-month worry free warranty for our product. Please contact us with any questions or concerns.