[Flyguy]

The stabilizers should operate on 12 volts DC so your battery should power them, the shore power is only to charge the battery and supply power for the 110v outlets, the AC unit, and the microwave. The shore power works through the battery for 12v power, once you unplug from it your on the battery alone. If the stabilizers don't work when on battery power (you should see them going up and down) then there is something wrong.