Originally Posted by Blastvalve
Only other thought, the Winnie manual recommends only running the slides with the engine running. The motors take a fair amount of “juice” and it’s recommended to have the engine running so the alternator is charging the batteries at the same time.
Yes for Winnie MH's that's true. The slides use the chassis battery and engine needs to be running. Now the OP said he always has the engine running BUT......as soon as your start the RV that chassis battery took a big hit with cranking amps. Best practice is to start the engine and let it run for about 15 minutes or so before you want to bring in the slides. That way it's had time to juice up to handle the load.
In the winter time when it's cold, in this fifteen minutes, you've also had time to run the dash heat on the windshield and warm it up too. I never pull out with a cold windshield. Tension, rolling and twisting with a cold windshield increases the chances of it cracking. So the 15 minute rule is what I practice before pulling in slides and pulling out to get on the road.