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.
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 03-10-2017, 09:18 PM   #1
Senior Member
 
Join Date: Feb 2017
Posts: 120
6 volt batteries in series

What would stop deep cell batteries from charging? I looked at the plates and they look decent. They have water right above the plates and when my rug is plugged in, it produces 13.36 volts. The batteries are 5.5 years old and huge buggers. No swelling on the sides. I was thinking about emptying, desulfating them and add distilled water back in them. Any thoughts?
__________________

__________________
mcarden75 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 03-10-2017, 09:42 PM   #2
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 12,857
Test the specific gravity of each battery cell, that should tell you what's happening with your batteries. The 12V side of Life , about halfway down page 1 explains it much better than I ever could.
When batteries are bulk-charging you should see a higher charge rate, 13.6 is a maintenance/float charge.
My battery bank did that once, I turned off/on(reset) my convertor and it began bulk-charging properly.
__________________

__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
Ray,IN is offline   Reply With Quote
Old 03-10-2017, 09:50 PM   #3
Senior Member
 
Join Date: Feb 2017
Posts: 120
Quote:
Originally Posted by Ray,IN View Post
Test the specific gravity of each battery cell, that should tell you what's happening with your batteries. The 12V side of Life , about halfway down page 1 explains it much better than I ever could.
When batteries are bulk-charging you should see a higher charge rate, 13.6 is a maintenance/float charge.
My battery bank did that once, I turned off/on(reset) my convertor and it began bulk-charging properly.
If you don't me me asking how do you reset the battery converter? My chassis battery is charge and cranks the engine. With my lights on, I tried to crank my generator and everything died. No juice what so ever. My 120 to 12v converter or inverter is working perfectly and everything is nice and bright.
__________________
mcarden75 is offline   Reply With Quote
Old 03-11-2017, 06:01 AM   #4
Senior Member
 
Stan&Jacquie's Avatar
 
Monaco Owners Club
Join Date: Mar 2012
Location: Allentown, PA
Posts: 477
Reset all of your related breakers and don't forget the one on the generator itself. Also check the small breakers on the inverter if yours has them. To reset your converter/inverter simply turn it off and then back on at yout EMS panel in the coach or the small button on the inverter.
__________________
Stan & Jacquie
2007 Monaco Knight DFT 40'
2012 Equinox w/Air Force I, Blue Ox Alpha & Base, 600 Watts Solar.
Stan&Jacquie is offline   Reply With Quote
Old 03-11-2017, 06:20 AM   #5
Senior Member
 
Bigd9's Avatar


 
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 3,187
mcarden75, I would not try and empty the batteries and refill them. Nothing to gain, but lots of safety & environmental problems there.

I always start at the cheap/easy end of troubleshooting and work toward the expensive/hard to do end.

I would first clean the battery terminals. Dirty or corrosion between the terminals and the wires could be the problem. Caution! Sparks and hydrogen gas don't mix! Turn off everything that could be using power and turn off the switches up front that disconnect the batteries. Do not remove the wires until the batteries have rested from the last charging cycle so the hydrogen gas has time to escape.

Secondly, like has been said, use a hydrometer (cheap and easy to find) and determine the actual cell charge state. This is the most valuable information you can have.

Third, batteries at 5.5 years old may be on their last legs.

Can you post pictures of what your batteries look like?
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
2006 Fleetwood Discovery 35H, being pushed by a 2009 Honda CRV
Bigd9 is offline   Reply With Quote
Old 03-11-2017, 06:58 AM   #6
Senior Member
 
Join Date: Feb 2017
Posts: 120
Quote:
Originally Posted by bigd9 View Post
mcarden75, i would not try and empty the batteries and refill them. Nothing to gain, but lots of safety & environmental problems there.

I always start at the cheap/easy end of troubleshooting and work toward the expensive/hard to do end.

I would first clean the battery terminals. Dirty or corrosion between the terminals and the wires could be the problem. caution! Sparks and hydrogen gas don't mix! turn off everything that could be using power and turn off the switches up front that disconnect the batteries. Do not remove the wires until the batteries have rested from the last charging cycle so the hydrogen gas has time to escape.

Secondly, like has been said, use a hydrometer (cheap and easy to find) and determine the actual cell charge state. This is the most valuable information you can have.

Third, batteries at 5.5 years old may be on their last legs.

Can you post pictures of what your batteries look like?
Click image for larger version

Name:	IMAG0019.jpg
Views:	102
Size:	96.8 KB
ID:	154477Click image for larger version

Name:	IMAG0020.jpg
Views:	107
Size:	104.6 KB
ID:	154478Click image for larger version

Name:	IMAG0021.jpg
Views:	103
Size:	80.1 KB
ID:	154479Click image for larger version

Name:	IMAG0022.jpg
Views:	100
Size:	112.3 KB
ID:	154480
__________________
mcarden75 is offline   Reply With Quote
Old 03-11-2017, 06:59 AM   #7
Senior Member
 
Join Date: Feb 2017
Posts: 120
Quote:
Originally Posted by Stan&Jacquie View Post
Reset all of your related breakers and don't forget the one on the generator itself. Also check the small breakers on the inverter if yours has them. To reset your converter/inverter simply turn it off and then back on at yout EMS panel in the coach or the small button on the inverter.
Do I reset while I'm plugged in or unplugged?
__________________
mcarden75 is offline   Reply With Quote
Old 03-11-2017, 07:04 AM   #8
Senior Member
 
Join Date: Feb 2017
Posts: 120
Quote:
Originally Posted by bigd9 View Post
mcarden75, i would not try and empty the batteries and refill them. Nothing to gain, but lots of safety & environmental problems there.

I always start at the cheap/easy end of troubleshooting and work toward the expensive/hard to do end.

I would first clean the battery terminals. Dirty or corrosion between the terminals and the wires could be the problem. caution! Sparks and hydrogen gas don't mix! turn off everything that could be using power and turn off the switches up front that disconnect the batteries. Do not remove the wires until the batteries have rested from the last charging cycle so the hydrogen gas has time to escape.

Secondly, like has been said, use a hydrometer (cheap and easy to find) and determine the actual cell charge state. This is the most valuable information you can have.

Third, batteries at 5.5 years old may be on their last legs.

Can you post pictures of what your batteries look like?
Click image for larger version

Name:	IMAG0023.jpg
Views:	90
Size:	50.7 KB
ID:	154481Click image for larger version

Name:	IMAG0024.jpg
Views:	91
Size:	54.7 KB
ID:	154482Click image for larger version

Name:	IMAG0025.jpg
Views:	93
Size:	62.3 KB
ID:	154483
__________________
mcarden75 is offline   Reply With Quote
Old 03-11-2017, 12:08 PM   #9
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 12,857
your question about resetting the inverter/charger has been answered.
Those battery connections appear to be rusted/corroded. Before removing any of them, take pictures so you know the routing and exactly how to re-attach the cables. Use a wire brush to clean everything metal, including battery terminals. Inspect all the battery cables, they will eventually corrode inside the insulation coating, and in the connection to the cable clamps.
If you have a multimeter, all cables should be tested for resistance and continuity.
Clean everything with a mild solution of baking soda and water solution, dry with a clean rag, making sure to avoid getting any of the solution into battery cells.
ABOVE ALL, WEAR EYE PROTECTION!
It looks like you have 2 6V batteries and 1 12V battery. In order to obtain balanced charging they should all be the same age, amp/hr rating.
I suggest when you have the cables removed, take the batteries to a battery store and have them checked, I venture to say the one not accepting charge will either be very weak or dead.
At that time, replace them ALL, otherwise the weak batteries will ruin the new one in short time.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
Ray,IN is offline   Reply With Quote
Old 03-11-2017, 12:31 PM   #10
Member
 
Vicr's Avatar
 
Join Date: Dec 2016
Location: Snohomish, WA
Posts: 59
Looks to me that the 12v Exide battery is the chassis battery.
__________________
Vicr is offline   Reply With Quote
Old 03-11-2017, 02:48 PM   #11
Senior Member
 
Bigd9's Avatar


 
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 3,187
I've been using baking soda mixed in water and a paintbrush since the 50's working on cars and trucks. It is a great battery acid neutralizer. Lately, in my old age I found a product in a aerosol can that I love. Same thing as baking soda just much more convenient to use. You spray it on and the color will change to indicate the presence of the acid, then it neutralizes it. You then just rinse the batteries off leaving a clean looking surface. Just make sure you don't get any inside the battery.
Attached Images
 
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
2006 Fleetwood Discovery 35H, being pushed by a 2009 Honda CRV
Bigd9 is offline   Reply With Quote
Old 03-11-2017, 02:59 PM   #12
Senior Member
 
Bigd9's Avatar


 
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 3,187
Forgot to include a picture of a Battery Hydrometer. I find it very useful checking the cells and seeing any problems early. I use this in tractor, truck and motorhome batteries that have removable vent covers. Handy as pockets on a shirt.
Attached Thumbnails
Click image for larger version

Name:	Battery Hydrometer.jpg
Views:	57
Size:	58.6 KB
ID:	154502  
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
2006 Fleetwood Discovery 35H, being pushed by a 2009 Honda CRV
Bigd9 is offline   Reply With Quote
Old 03-11-2017, 06:00 PM   #13
Senior Member
 
Join Date: Feb 2017
Posts: 120
Quote:
Originally Posted by Ray,IN View Post
your question about resetting the inverter/charger has been answered.
Those battery connections appear to be rusted/corroded. Before removing any of them, take pictures so you know the routing and exactly how to re-attach the cables. Use a wire brush to clean everything metal, including battery terminals. Inspect all the battery cables, they will eventually corrode inside the insulation coating, and in the connection to the cable clamps.
If you have a multimeter, all cables should be tested for resistance and continuity.
Clean everything with a mild solution of baking soda and water solution, dry with a clean rag, making sure to avoid getting any of the solution into battery cells.
ABOVE ALL, WEAR EYE PROTECTION!
It looks like you have 2 6V batteries and 1 12V battery. In order to obtain balanced charging they should all be the same age, amp/hr rating.
I suggest when you have the cables removed, take the batteries to a battery store and have them checked, I venture to say the one not accepting charge will either be very weak or dead.
At that time, replace them ALL, otherwise the weak batteries will ruin the new one in short time.
I'm certainly trying to save the 6v. Those batteries run about $208 each. I'm going to clean the batteries and check continuity as suggested and see what happens for connections. After I reset I plugged in the line to see what happens. I was also reading about a 3 stage inverter available to change out for older RVs. I have this new thing being delivered that is called desulfator. You plug it in and while the battery charges it pulses to clear the sulfate buildup on deep cycles.
__________________
mcarden75 is offline   Reply With Quote
Old 03-11-2017, 09:30 PM   #14
Senior Member
 
Stan&Jacquie's Avatar
 
Monaco Owners Club
Join Date: Mar 2012
Location: Allentown, PA
Posts: 477
Quote:
Originally Posted by mcarden75 View Post
I'm certainly trying to save the 6v. Those batteries run about $208 each. I'm going to clean the batteries and check continuity as suggested and see what happens for connections. After I reset I plugged in the line to see what happens. I was also reading about a 3 stage inverter available to change out for older RVs. I have this new thing being delivered that is called desulfator. You plug it in and while the battery charges it pulses to clear the sulfate buildup on deep cycles.


If your converter/ inverter provides an equalization cycle, this would desulfste your batts also. May take two or three times initially depending on batt condition but then should become part of battery maintenance on a monthly or every other month schedule.
__________________

__________________
Stan & Jacquie
2007 Monaco Knight DFT 40'
2012 Equinox w/Air Force I, Blue Ox Alpha & Base, 600 Watts Solar.
Stan&Jacquie is offline   Reply With Quote
Reply

Tags
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
Replacing 4 12 Volt batteries with 6 volt batteries Wesslvm RV Systems & Appliances 11 06-01-2016 11:27 AM
6 volt in series vs. 12 volt batteries rnlshores RV Systems & Appliances 5 11-30-2014 09:54 PM
6 volt house batteries......in series or parallel? pacevette MH-General Discussions & Problems 8 04-01-2013 06:59 AM
2 6 volt batteries wired in series Rnicfingrp RV Systems & Appliances 5 06-12-2012 07:17 AM
12 volt parallel vs. 2 6-volt series batteries nascar-co RV Systems & Appliances 14 02-04-2010 09:50 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:07 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.