Gomadic High Output Home Wall AC Charger designed for the TomTom Go 720 with Power Sleep technology - Intelligently designed with Gomadic TipExchange 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 TomTom Go 720). Advanced state-of-the-art internal circuitry protects the TomTom Go 720 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 TomTom Go 720 (accurate to 0.1v!) TipExchange Technology protects your investment, by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for TomTom Go 720) included with additional tips sold separately) Uniquely engineered in a small, lightweight, and highly portable design, the Gomadic TomTom Go 720 Wall Charger travels easily, saving both space and time.