Samsung M300 M305 M510 M520 Car Charger CAD300SBEB Compact and lightweight -fits in your cigarette lighter socket. Charge and talk at the same time Quickly and reliably charge your cell phone while you are on the go Fits perfectly into any 12V accessory outlet or car lighter jack. Dynamic IC Chip - built-in smart chip recognizes a full charge and automatically switch to a save-mode. This will protect your battery from over charging and preserve your battery's life span.