Originally Posted by Sebourn
Related Question -
Aren't the items operated by 12 volt power when not connected to shore power still using the 12 volt power when hooked up to shore power? Difference being that with shore power the converter is keeping a charge going to the battery and not letting it deplete itself. And isn't the slide one of the 12 volt powered items just like the electric jack and stabilizers?
So if the battery was going bad and not able to be charged fully, it might make for a slower slide.
Sort of. The converter and battery are both providing power to the trailer. Any excess power not being consumed by trailer components charges the battery.
The typical converter in many trailers is the WFCO 8955 which can provide up to 55 Amps. If the slide requires more than 55 Amps, it will be drawing the battery down as well as consuming the entire output of the converter.
A typical RV hydraulic pump can draw 40-80 amps so, as you suggest, if the battery is low, the pump could indeed be starved, even with shore power.