Overcharged batteries

[BigEd54]

I wanted to get some feedback from members on a question about winter storage for my motorhome. In the past, I drain and winterize the water systems to prevent freezing, but I also like to leave a couple of small ceramic heaters set to run on timers several times during the really cold days/months.
My question is what options would you recommend to keep the power on without overcharging the house batteries? Would a disconnect on the house batteries be a good option?
Thanks for any input or suggestions

[triplewide]

I left my 2015 ACE plugged in 24/7 while stored, batteries on. I had 3 flooded type 12 volts in parallel. Batts were 4 years old and going strong when I traded the coach. Did have to check water levels every 1-2 months.

[twinboat]

People who live in RVs full time, and never move, are plugged in for years at camp grounds.

A good charger won't overcharge your batteries. Find it, or its specs, and see if its a 3 stage charger. If its a 2005 or newer MH, your probably OK.

[yeloduster]

Your Bounder has a device called a CONVERTER. The converter's job is to change the 120V AC from your external power cord into 12 DC. It also serves as a battery charger.

You haven't provided very much info on your motorhome such as the year, chassis it is mounted on etc. That info might be helpful for getting feedback.

You need to find the converter in your motorhome and determine the brand and model. Once you have that information you can search the internet for its specifications and capabilities. Most converters in the last 15 years or so have a "Smart Charger" built into the converter. If you have one of these sophisticated converters you don't need to worry.

If your converter doesn't have a "Smart Charger" built in you have several options. You can buy one of the newer ones and replace the converter in your motorhome, you can get a "Battery Minder" to connect to your battery while in storage, you can make sure your batteries are fully charged then disconnect them, etc.

My 1988 Bounder had a simple converter that provided approximately 13.2 volts when the battery was low and slowly gained voltage over time. Eventually this overcharged the battery and boiled the water out. I changed it out for this: https://www.amazon.com/Progressive-D...s%2C223&sr=8-1. Never worried about it again.