... .Led light indicate 5.Small size,USB port Travel Charger Features: USB Car Charger For Iphone/IpodInput: 12-24V, Output: 5V, 1000mA ... and short-circuitScope of application: PSP, PMP, PDA, digital cameras, ipod, iphone, mobile phones, computer lighting charge, sansa, zen, zune, ... and no LED indicator for charger.4. Please pull out the charger from DC socket firstly, then the battery's plug when finish ...