We always insure our battery is used in the circuit when moving the slides. That little more juice seems to really help out.
I have actually seen folks nose their truck up to the tongue area and parallel a jumper cable to help their batteries along when moving the slides.
The moving of the slides and then stopping for a few seconds then starting up again is sure a telltale sign the auto reset circuit breakers are being tripped then starting up again a few seconds later after they cool down alittle and auto reset..