Draper Car Computer Memory Saver £11.95
Computer memory saver maintains an uninterrupted power supply to security coded car radios on board clocks etc. When disconnecting vehicle battery. The saver plugs into a conventional car cigarette lighter and can be powered either by a fully charged 12v car battery or a9v battery (pp3 type - sold separately). Supplied complete with 2m of cable and crocodile clips. Display packed..