Gomadic Intelligent Compact AC Home Wall Charger suitable for the Magellan Maestro 3225 - High output power with a convenient, foldable plug design - Uses TipExchange Technology Advanced state-of-the-art internal circuitry protects the Magellan Maestro 3225 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 Maestro 3225 (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 Maestro 3225). 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 Maestro 3225) included with additional tips sold separately) Specification: Input Voltage (100 - 240vAC), Cable length (50 inches), Transformer Dimensions (2.0 X 1.75 inches), Foldable Adapter (Yes), Circuit Design (Magellan Maestro 3225 Specific)