The Magellan 980827 12/24-Volt Power Adapter with Cigarette Lighter Adapter For the Magellan RoadMate 800 only. Plug the 12-24 V power adapter into the cigarette lighter of your car, truck, motorcycle or RV for continuous navigation, music listening or photo viewing entertainment. This replacement vehicle power adapter will also charge the on-board Li-Ion battery while you navigate. Full battery re-charge time varies depending on product use while charging, anywhere from 2 to 4 hours (possibly longer when in GPS navigation mode).