RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Fleetwood Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 12-05-2020, 09:36 AM   #1
Member
 
Join Date: Sep 2012
Posts: 48
Odd House Battery Issue

I have a 2008 Terra LX motorhome and had a weird house battery issue. I had this issue with the old house batteries and since they're at over eight years old I replaced them with new 6 volt golf cart batteries thinking their old age was the issue. When we went to pack the motorhome i discovered the new batteries were dead. I checked and they were at 2.4 volts at the battery posts. My charger wouldn't charge them as they were too low. I got a low amp charger and got a trickle charge started. Within 5 minutes the batteries came to life and were at 14volts and all was normal since. We've made the trek from Minnesota to South Padre Island with no further issues. I do use the 'salesman switch to turn them off when putting the motorhome in storage and I'm suspecting that may be the issue but it seems weird that they will register basically no voltage at the battery post one minute and a few minutes later be at full voltage.

Bruce
delornut is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com 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 12-05-2020, 10:15 AM   #2
Senior Member
 
Monaco Owners Club
Join Date: Sep 2014
Posts: 3,813
You mentioned that your batteries go to 14vdc. This is not the battery voltage but the charger voltage.
It sounds like you let the batteries get totally drained and your inverter/charger or converter wouldn't start charging until you hooked up the trickle charger. It could be that simple.
__________________
1996 Tioga Class C
400 amp/hrs solar, Trimetric

2007 Monaco Diplomat 40 PDQ
okcnewbie is offline   Reply With Quote
Old 12-05-2020, 10:22 AM   #3
Senior Member


 
Holiday Rambler Owners Club
Join Date: Aug 2015
Posts: 5,151
Quote:
Originally Posted by okcnewbie View Post
You mentioned that your batteries go to 14vdc. This is not the battery voltage but the charger voltage.
It sounds like you let the batteries get totally drained and your inverter/charger or converter wouldn't start charging until you hooked up the trickle charger. It could be that simple.
Yup.
__________________
Mark
2008 Holiday Rambler Admiral 30PDD (Ford F-53 chassis)
2009 Honda Fit Sport
l1v3fr33ord1 is offline   Reply With Quote
Old 12-05-2020, 11:47 AM   #4
Member
 
Join Date: Sep 2012
Posts: 48
Quote:
Originally Posted by okcnewbie View Post
You mentioned that your batteries go to 14vdc. This is not the battery voltage but the charger voltage.
It sounds like you let the batteries get totally drained and your inverter/charger or converter wouldn't start charging until you hooked up the trickle charger. It could be that simple.
Everything in the house using 12 volts was dead, no interior lights, etc. There wasn't 120 electric plugged into the motorhome. I checked across the posts from the two batteries looking to measure 12 volts from the two 6 volt batteries and saw 2.4 volts on the meter. I have a sophisticated charger that told me the batteries were too low to accept a charge. I had a small charger that would do a 2 amp charge and it would charge for a couple of minutes and then kick off. After re-starting the charger several times with it trickle charging a couple of minutes each time I suddenly had lights and the batteries displayed full charge without the charger connected. As I said, my meter showed 2.4 amps at the posts when I found no 12 volt power to the house but after the charger routine I mentioned, which lasted a total of fifteen minutes suddenly all power was back with the batteries showing full charge. Everything has worked fine since then. This is the second time this has happened, the first being the late summer event when I decided to replaced the 8 plus years old batteries. I know this doesn't add up but I was just hoping someone may have an idea if this could be possible or maybe I'm just nuts.
delornut is offline   Reply With Quote
Old 12-05-2020, 11:55 AM   #5
Senior Member
 
harleyjt's Avatar


 
Newmar Owners Club
Workhorse Chassis Owner
Join Date: Jan 2015
Location: Byhalia, MS
Posts: 3,075
Quote:
Originally Posted by okcnewbie View Post
You mentioned that your batteries go to 14vdc. This is not the battery voltage but the charger voltage.
It sounds like you let the batteries get totally drained and your inverter/charger or converter wouldn't start charging until you hooked up the trickle charger. It could be that simple.
I'm guessing your charger (either converter or inverter) is bad and not charging the batteries properly. I had the same thing happen to me. It would charge for just a couple of minutes then the converter/charger voltage would fall off. New converter charger and all is good again.
jt
__________________
2005 Newmar Kountry Star Gas 3742, Workhorse W24, 8.1L/Allison 5-spd
2017 Grand Cherokee or 2017 Harley Ultra in tow
JT, Em & the boys, Kong & Baxter (rescued grey tabbies)
harleyjt is offline   Reply With Quote
Old 12-05-2020, 12:13 PM   #6
Senior Member
 
Join Date: Jul 2014
Posts: 25,411
You have a bad, dirty, terminal connection or ground connection.

While nothing works, go out and move the terminals.
twinboat is offline   Reply With Quote
Old 12-05-2020, 03:48 PM   #7
Member
 
Join Date: Sep 2012
Posts: 48
Quote:
Originally Posted by twinboat View Post
You have a bad, dirty, terminal connection or ground connection.

While nothing works, go out and move the terminals.
Makes sense, I'll have to check it out when the rain stops. Thank you.
delornut is offline   Reply With Quote
Old 12-05-2020, 03:55 PM   #8
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 23,567
When you use the "salesman switch", your onboard charger can't maintain the charge on the batteries. They are "disconnected" from everything, including the charger.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 12-05-2020, 04:46 PM   #9
Senior Member
 
Join Date: Jul 2014
Posts: 25,411
Many people check the battery terminals and read 12+ volts but then don't check the cable ends connected to them.

If the connection is corroded, the volts don't get to the cables.

The same goes for the other way. You probe the terminal and get very low readings but not the actual battery post.
twinboat is offline   Reply With Quote
Reply

Tags
battery



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
Battery - connected house batteries to both house and engine. Engine battery removed. MMMZ Class A Motorhome Discussions 37 06-07-2018 12:38 PM
Odd Electrical/Battery Issue behing19 Class A Motorhome Discussions 14 09-11-2016 09:50 PM
Odd house battery problem Pusherpilot Monaco Owner's Forum 11 11-13-2012 10:00 PM
Very odd electrical issue gtbiv1 Travel Trailer Discussion 14 05-26-2012 09:16 PM
Odd starting issue irvdog63 Class A Motorhome Discussions 6 09-16-2011 11:39 AM


All times are GMT -6. The time now is 06:36 PM.


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