Gomadic High Output Home Wall AC Charger designed for the Magellan Roadmate 3000T with Power Sleep technology - Intelligently designed with Gomadic TipExchange Advanced state-of-the-art internal circuitry protects the Magellan Roadmate 3000T from power surges, overcharging, and short-circuiting, to significantly extend the internal battery lifecycle. 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 3000T). 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 3000T (accurate to 0.1v!) Charger works on power voltage levels worldwide by supporting a wide input range of 100-240v AC / 50-60 Hz. Uniquely engineered in a small, lightweight, and highly portable design, the Gomadic Magellan Roadmate 3000T Wall Charger travels easily, saving both space and time.