[Festus2]

If you somehow "kill the battery overnight", you will be in for a bit of a shock in the morning when you go to retract your slide - if it has been put out. The slide runs off your RV battery which needs to be charged in order for your slide to operate properly. You should be able to get through one night without completely discharging your battery. If you can't then either your battery needs replacing or you are using too many things for too long a time which are causing excessive drains on your battery. Rather than completely discharging your battery through overuse, I would recommend that you try to be "stingy" with what you are using - lights, furnace, water pump, stereo, etc. so that when you wake up in the morning, you have enough juice left to get you going.

I always plug the truck into the RV while operating the slide and the front jacks.

If your battery does get low, several hours of driving should be sufficient to recharge it - not forever - but longer than you might think.