Unique Gomadic Car and Wall AC/DC Charger designed for the Rand McNally Intelliroute TND 510 710 720 &ndash; Two Critical Functions, One Great Charger (includes Gomadic TipExchange) Intelligent circuit tailors precise output voltage (including resistor configuration) specific to the Rand McNally Intelliroute TND 510 710 720 . This ensures battery is safely and efficiently charged. State of the art, advanced circuitry prevents the Rand McNally Intelliroute TND 510 710 720 from being damaged by power surges, overcharging and/or short-circuiting. Broad input voltage range of 12-24VDC and 100-240VAC respectively. Permits charging via vehicle and home outlets worldwide! Gomadic TipExchange Technology protects your investment by providing a means to change/upgrade your charger by simply swapping the physical charging tip. (Charging tip for Rand McNally Intelliroute TND 510 710 720 included with additional tips sold separately) Power Sleep feature will cut power draw of charger by over 99% when not in use. Charger will draw less than 0.1W of power when in ready state (e.g. not connected).