Fosmon Technology Retractable Micro USB Car/Vehicle Charger for the LG LG840G Car charger plugs directly into your car's 12V cigarette lighter and charges your phone while you're on the road. Intelligent IC chip recognizes a fully charged battery and automatically switches to saver mode to prevent overcharging and short circuit. The innovative retractable design with quick release button cuts down on bulk and ensures the portability of your cell phone without taking up a bunch of space - no more tangled cable messes! Compatible with any Micro-usb powered device. Powerful enough to charge tablets and smart phones quicky - 12V DC input / 1000mAh 5V DC Output.