House Battery Life

[Lawfive]

What is the typical lifespan of a couple of 12 volt house batteries? I realize that usage will have a great affect. My batteries are just over a year old and dealer installed. Most of my usage has been with shore power and little to no dry camping. I have a cutout switch so there is no parasitic trickle drain going on. Minimum every three weeks I take a 30 minute drive to keep everything oiled and charged. So any guesses?

[LadyWindrider]

Do you mean how long will they last? Typically, 3 to 5 years. Again it depends on usage, what you expect from them, and how well they are maintained. Have you checked the water in them lately? 30 minutes will not charge them properly, need a good 3 stage charger and at least 3 days plugged in to charge them properly. They need to be used occasionally, so camp one night with just the batteries, but have shore power to recharge them with the next day.

It's kind of like most everything else, "your mileage may vary"

[Lawfive]

Thanks for the reply. Yeah, I knew that mileage would vary. I have a separate multistage charger I drag along with me just in case but I'm not sure about specifics. What kind of charger is built into our MH? Shouldn't that be a multi....

[Bama Rambler]

I never expect more than 3 years out of a battery. Your MH has a good multistage charger and should do a wonderful job of maintaining your batteries.