First time dry camping this weekend

We did it...no issues.. Did run the genny on Saturday for about an hour to make ourselves feel better. The control panel for the battery is marked in thirds. It dropped down to 2/3 and got me thinking to why it would go so fast. We only ran a couple lights for no more 30 minutes. The water pump was used a few times to wash hands and flush toilets and of course the fridge was running. Figured out the next day that while the TV was not on, that it was drawing a current. Unplugged it. Also, our in dash radio is connected to the house battery. We can turn off the radio, but it still has a current to it as its buttons still light up. I couldn't figure out how to get it to shut down completely. The manual to the RV is useless and is generic. I didn't think about it, but the only alternative I know of would be to pull a fuse to it while camping. Anyone with any other ideas? I know it has to be drawing a current. I finally remembered that I had a voltmeter in my tool box. Thought I left it at home. Checked it once on Saturday it was reading 12.39. Also, the more I thought about the panel, it was reading between 2/3 and full. Meaning we were above 2/3 and not at 2/3. Might eventually have to wire a battery meter to it and mount it so I don't have to keep lifting up the stairs and checking. lol

Water wise, we were more than good. Had a full fresh water tank. Took 2 full 6 gallon jugs with us. Added one on Saturday and the other on Sunday morning before leaving. Gray tank was up to 2/3 full and had to add some to the black tank to get it sufficient enough to dump.

Oh yeah...ran the fantastic fans a total of 2 hours maybe. Cut them off at night. Was more than cool enough with the windows open. Think it got into the upper 50's or low 60's. Didn't spend much of the day on Saturday in the camper. Kayaked, went for a ride and then of course shopping for my wife and daughter.