2 Amp (10W) Mini Car / Auto DC Charger Compatible with Garmin nuvi 2557 / 2577 / 2597 LMT - Amazingly small and powerful 10W design, built with Gomadic Brand TipExchange Technology Charger provides a full 10W (2,000mAh) of available current in a small form factor a little over 1 inch long. Flexible, straight cable measure 50 inches in total length. Intelligent circuit provides precise output voltage and resistor configuration specific to the Garmin nuvi 2557 / 2577 / 2597 LMT. This ensures battery is safely and efficiently charged without affecting battery longevity. 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 Garmin nuvi 2557 / 2577 / 2597 LMT) 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 to the Garmin nuvi 2557 / 2577 / 2597 LMT). Uses latest state of the art advancements in charging and surge suppression technologies to deliver a unique product in an unbelievably micro-sized form factor.