Dead Battery and hitch/slide

hawkeye-08 wrote:
My electric tongue jack is directly wired to battery, if battery was missing, the jack would not work unless the jack wire was connected to positive battery cable (which should go back to converter that charges battery).

Of course, it all depends on how one chooses to have their trailer wired. Currently my tongue jack isn't fed directly from the battery but from a terminal block that is after the disconnect switch so if there's an external source of 12 vdc power - truck or trailer converter - my tongue jack will run, as will the slide and awning, regardless of whether there's even a battery in place. The point I was making is that the converter will easily power a tongue jack, awning, or small slide, no battery needed, 'though my understanding is that really large slide motor draw so much a battery may be needed in some circumstances. Unfortunately the OP is asking a question that can't be answered definitively by anyone because we have no idea how her particular rig is wired.