UnoLiner ReFab G51 Air-Power-Hoist cabinet supplying power, compressed air and battery charging cables to where needed. Direct there, at the vehicle. Shown in the photos is also the optional Vehicle Hoist Control Panel. Using the G90 Battery Charging Arm connecting the charger to the battery is easy. Just pull the overhead arm towards the vehicle. Pull down the clamp connectors and connect the battery clamps to the correct positive & negative battery poles.