A lift gate (12) is raised and lowered on a motor vehicle by a prime mover. An electrical system of the vehicle has at least one D.C. storage battery (22) for raising and lowering the lift gate when the vehicle engine is not running. A disconnect, such as a mag switch (20) carries electricity from the...http://www.google.co.uk/patents/US20060071553?utm_source=gb-gplus-sharePatent US20060071553 - Lift gate power control system
