This auto memory saver maintains voltage continuity to an engine computer when the vehicle battery is disconnected and is particularly useful when changing the main battery. It has sufficient power to keep a car's memory alive, including the clock and radio, and prevents having to reprogramme lost codes. Fitted with a rechargeable 4Ah battery, the memory saver has an OBD connector and LED power indicators. It also features a USB outlet for charging tablets and iPads and has a power source for 12V DC accessories. Features: For maintaining voltage continuity to an engine computer when the vehicle battery is disconnected Prevents wasting time having to reprogramme lost codes Particularly useful when changing the main car battery Features a power source for 12V DC accessories and a USB outlet for charging tablets and iPads Fitted with a rechargeable 4Ah battery and LED power indicators Specifications: Dimensions: H:19.2 x W:14.6 x D:21.6 cm Colour: Black Guarantee:1 year Material: Plastic