Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 01-26-2017, 03:56 PM   #1
Smack's Avatar
Join Date: Jul 2016
Location: On the road
Posts: 89
House batteries not charging

Hi all-
Having some trouble with my house batteries that I'm hoping someone can give me some insight on.
I mostly boondock and over the last year, I need to add water to my house batteries about once every couple of months, which I didn't really think was excessive since I'm hardly ever plugged in.
I'm in California right now visiting relatives and ended up staying much longer than I had planned to because of weather. For So. Cal we had a lot.
My relatives have a 5th wheel and a 30 amp hook up for it, and I've been plugged into their shore power for a couple of weeks now.
Today, I unhooked to take my coach for service and about 10 minutes after unhooking, everything went dead and the relay for the house disconnect started clicking and the co2 detector started beeping to the clicks. .

Checked the water and it's fine.
Cranked up the generator for a bit, Drove across town to the shop and it was all good,
Came back after a few hours at the shop and when I turned off the engine the disconnect started clicking and beeping again.
Checked the battery monitor and the main battery reads 13.3v, but the aux battery doesn't register at all the screen is just blank.

Pretty sure the batteries are the originals, which makes them older than God considering my coach is a 2008, which is why I wasn't so concerned about having to add water all the time.

Seems odd that the batteries were not being charged or maintaining the charge when plugged in to shore power, but they were charging from the generator and from driving, at least enough to keep everything going for a few hours.

Can a battery just die to the point of not registering on the monitor at all, or is this s symptom of something worse?
Smack is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-26-2017, 04:00 PM   #2
Senior Member
Forest River Owners Club
Join Date: Feb 2015
Location: Johnson City, TX
Posts: 956
My experience is "yes", a battery (or batteries) can go from being fine to being toast overnight.
2018 Rockwood 2304DS Ultra Light pulled by 2018 Ram 2500 Cummins Diesel 4x4
RobbieH is offline   Reply With Quote
Old 01-26-2017, 04:07 PM   #3
Senior Member
Join Date: Jul 2014
Posts: 26,783
Doesn't your generator start from your house batteries ?

Check you cable connections and breaker or fuse to the house power center.
twinboat is online now   Reply With Quote
Old 01-26-2017, 04:30 PM   #4
Smack's Avatar
Join Date: Jul 2016
Location: On the road
Posts: 89
Thanks Robbie-
I would think that the monitor would read at least 2 or 3v or whatever it's got left? Totally blank screen was a bit of a surprise
I was S ick and tired of being sick and tired, so I hit the road with my dogs and never looked back
Smack is offline   Reply With Quote
Old 01-26-2017, 04:32 PM   #5
Smack's Avatar
Join Date: Jul 2016
Location: On the road
Posts: 89
Yes it does. And it doesn't. I have the aux start switch so I can start it from the chassis battery, which is how I had to do it
I was S ick and tired of being sick and tired, so I hit the road with my dogs and never looked back
Smack is offline   Reply With Quote
Old 01-26-2017, 05:14 PM   #6
Smack's Avatar
Join Date: Jul 2016
Location: On the road
Posts: 89

Plugged back into shore power now. Battery monitor reads 13.75v for both Main and aux batteries. Unplugged aux battery doesn't register.
Smack is offline   Reply With Quote
Old 01-26-2017, 05:43 PM   #7
Senior Member
Sweetbriar's Avatar
Thor Owners Club
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 3,324
Your house batteries, after 8 years, are very tired and want to go where all good batteries go when they are tired. Recycling into newer, stronger, better batteries. Grant them their final wish.

Your observation pretty much are in line with aged out batteries. More than happy to consumer power from the charger but their capacity to hold a charge with a minimum or no load is now measured in minutes rather than months.

As far as your monitor if there isn't enough power to close the disconnect then then monitor is going to read 0 VDC. The solenoids usually open at around 10VDC which more or less is a deads battery.

The high water consumption is a sign of a possible cell short. The short will generate heat and a slow simmer boiling off the water You could pull the batteries and head on down to the local auto parts store and have them tested. More or less you'll be getting a second opinion that they have reached their limits. Also a single cell short will cause a discharge of all the batteries in a bank.
Sweetbriar is offline   Reply With Quote
Old 01-26-2017, 06:14 PM   #8
Senior Member
Hangfive's Avatar
Vintage RV Owners Club
Ford Super Duty Owner
Rexhall Owners Group
Join Date: Nov 2014
Posts: 251
In my 95 Rexhall the "coach" circuit breakers for AC and DC are located in the panel below the closet. In that unit you will also find the "coach" battery charger below the circuit breakers. I also just found my "coach" batteries to be toast. I'm using a pair of 6 voters from LES Schäuble they are GC2's, for golf carts. The charger in these older Rexhall's are not "smart chargers" and will cook your expensive batteries. I m installing a smart charger for Progressive Dynamics rated 100A, from Amazon, which will run all of my DC compensation and charge the batteries and keep them healthy.
Hangfive is offline   Reply With Quote
Old 01-27-2017, 11:06 AM   #9
Smack's Avatar
Join Date: Jul 2016
Location: On the road
Posts: 89
Thanks everyone!

Thanks for all the input everyone. I changed out the house batteries with 2 new 6v golf cart batteries and everything is back to normal! Had the old batteries checked and sure enough, I had a fracture/dead cell. They said it likely happened with the freeze we had earlier this week. So glad it wasn't anything more serious. Any repair under $200 is a good repair!!
Smack is offline   Reply With Quote
Old 01-27-2017, 02:37 PM   #10
Senior Member
wa8yxm's Avatar
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,023
Originally Posted by RobbieH View Post
My experience is "yes", a battery (or batteries) can go from being fine to being toast overnight.
I will second that.. Have had it happen in fact.

True story much longer condensed
OEM battery died (under warranty)
Opted for a better battery (Lifetitime warranty $60.00)
1 week later: Got new LIfetime battery (Warranted $0.00)
Many years later.. Started car, drove to dry cleaners,,, Picked up Uniform.. Car would not start, had to call AAA for a Jump

It went from GOOD to TOAST in less than 1/2 mile!!!!!

New battery (5 year warranty but grandfathered) would have cost 150.00 had I had to pay for it.. but $0.00... Best 60 bucks I ever spent!!!!

That battery... Outlasted the car.
Home is where I park it!
wa8yxm is offline   Reply With Quote

batteries, charging, house batteries

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
House Batteries Not Charging while driving? UPDATED 3/15/06 Old Snipe Winnebago Industries Owner's Forum 15 04-28-2017 09:29 AM
House Batteries Not Charging - Appears Converter Not Working - But Don't See Why? vsheetz RV Systems & Appliances 12 01-21-2013 07:50 PM
Cummins alternator not charging house batteries John_Canfield Winnebago Industries Owner's Forum 11 10-17-2006 04:50 AM
House Batteries not charging while driving? dhrt05 MH-General Discussions & Problems 7 06-05-2006 06:01 PM
Not Charging House batteries bill jones Winnebago Industries Owner's Forum 18 01-06-2005 04:35 PM

All times are GMT -6. The time now is 07:11 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.