Gomadic Intelligent Compact Car / Auto DC Charger suitable for the Sony Nav-U NV-U83T - 2A / 10W power at half the size. Uses Gomadic TipExchange Technology 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 Sony Nav-U NV-U83T) 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. Intelligent circuit provides precise output voltage and resistor configuration specific to the Sony Nav-U NV-U83T. This ensures battery is safely and efficiently charged without affecting battery longevity. 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. Generous input voltage range of 12-24VDC, supports a wide variety of DC charging ports from cars and trucks (both foreign and domestic) to boats, planes and RVs.