Forum Discussion

Explorer

Jul 22, 2016

What are the proper ways to keep batteries charged.

What is the normal procedure to follow when keeping your batteries charged during storage? I have owned an RV for almost 10 years now and still not sure if I am doing it right. I presently own a 2007 Coachmen Cross Country diesel pusher. I have been using battery tenders on the batteries. I was told i could use the onboard charging system thru the inverter. Not sure on what I would have to do to use this system. I always use the chassis disconnect as well as house battery disconnect when It is going to be parked for any length of time. I just want to make sure I am doing it properly or have I been doing it wrong all these years ? any help or info is greatly appreciated.

Class A

13 Replies

pianotuna
Nomad III
Jul 22, 2016
Hi,

I chose to install a modest solar system. My batteries love it.
kyle86
Explorer
Jul 22, 2016
My converter has a "charge wizard" which allows 3 modes. Boost, normal, and storage. It essensially trickle charges once it's plugged in for 72+ hours. I leave plugged in all the time. I think your battery tender does the same thing. No reason to change what you're doing IMO.
wolfe10
Explorer
Jul 22, 2016
If you have 120 VAC where you store it, AND, you properly program your inverter/charger, you can leave it on 24/7/365. Programming instructions are in your inverter/charger owners manual and include setting:
Battery technology (wet cell, AGM or gel)
Battery bank size (in amp-hrs)
Temperature unless you have the optional temperature probe

On some coaches the inverter/charger charges only the house bank, on others, both banks. If yours does not charge the chassis battery, and you have a smart battery tender, you can use it to keep the chassis battery charged.

If both batteries are charged as above, no need to disconnect them.