Easily charge multiple devices this handy usb car charger the power adapter with 6300 mah power output charges up to three devices simultaneously the high charging current of 2 x 2400 mah and 1x 1500 mah is ideal for particularly current hungry devices such as tablet pcs or smartphones with activated navi and bluetooth enabled at the same time technical specifications input voltage 12 volt dc car plug cigarette lighter socket output voltage dc 50v usb socket compact design only