Please Help With Genie GS-1930

We are going crazy with this thing. We've installed two sets of new batteries and had the charger and lift checked and everything checks OK. The problem we're having is when we have a full charge, the lift will only move about 150 feet before the battery indicator drops to about a 40% charge and the lift will hardly move. We need to get help to push it up onto a tilt trailer. It will also barely lift two people in it with a full charge. It does draw between .5 and 1 amp with everything shut...

Please Help With Genie GS-1930

Please Help With Genie GS-1930