3A usb car charger, USB car charger with two ports .car battery charger for Mobile,GPS,PDA,Tablet PC .patented 3A usb car charger, USB car charger with two ports.car battery charger for Mobile,GPS,PDA,Tablet PC .2 USB ports.Power management integrated circuit build-in for multiple loop circuit protection,over heat,overy loaded protection and safety to use.wide range input voltage DC12V-24V which ...