Gomadic High Output Home Wall AC Charger designed for the Magellan Roadmate 9055 with Power Sleep technology - Intelligently designed with Gomadic TipExchange Advanced state-of-the-art internal circuitry protects the Magellan Roadmate 9055 from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. Gomadic Powerful High Wattage wall charger for home or travel use. Customized circuit design is based on the latest in power regulation and is tailored to the precise output voltage and resistor ID requirements of the Magellan Roadmate 9055 (accurate to 0.1v!) Power Sleep"" feature reduces vampire power draw 99%. Charger will consume less than 0.1W of power when in ""dormant state"" (e.g. not connected to the Magellan Roadmate 9055). A quality product intended to be the last home/travel charger you ever buy! This product is backed by the Gomadic Lifetime Warranty. TipExchange Technology protects your investment, by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Magellan Roadmate 9055) included with additional tips sold separately)