Gomadic Intelligent Compact Car / Auto DC Charger suitable for the Navigon 7100 - 2A / 10W power at half the size. Uses Gomadic TipExchange Technology Intelligent circuit provides precise output voltage and resistor configuration specific to the Navigon 7100. 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 Navigon 7100) included with additional tips sold separately) 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. 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. Built using high quality capacitors and circuit components to ensure that charging current does not interfere with FM radio transmissions. Rigorous Q&A process.