Intelligent Dual Purpose DC Vehicle and AC Home Wall Charger suitable for the Garmin Montana 600 650 650t - Two critical functions, one unique charger - Uses Gomadic Brand TipExchange Technology Broad input voltage range of 12-24VDC and 100-240VAC respectively. Permits charging via vehicle and home outlets worldwide! Intelligent circuit tailors precise output voltage (including resistor configuration) specific to the Garmin Montana 600 650 650t . This ensures battery is safely and efficiently charged. State of the art, advanced circuitry prevents the Garmin Montana 600 650 650t from being damaged by power surges, overcharging and/or short-circuiting. Provides a unique combination of both a Rapid Car Charger and a Rapid Wall Charger in one light and compact design Non-coiled, straight cable design allows for easy routing around your vehicle trim for a more professionally installed look. Durable construction is built to last.