Janss wrote:
Suppose I am staying at an RV park for a few weeks. My engine battery powers my slides and is only charged by driving (or running in place). I need to retract the large slide sometimes due to wind (so topper doesn't tear). In order not to run the engine battery down, would it be okay to hold down the battery boost button while running the slide in/out, so that my house batteries can boost the engine battery as it runs the slide? I know I can always start the engine and run it for awhile. But this other idea seems even easier.
yes, it's ok but unnecessary. your starting battery should not run down simply by running the slides out and back in. but to give you some peace of mind just leave the engine running when you run the slides out and re-start the engine before bringing them back in.
or...add a
trik-l-start battery charger. this will keep your starting battery charged when your RV is plugged into shore power.