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 > 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 07-24-2017, 06:05 AM   #1
H2O4's Avatar
Join Date: Feb 2015
Location: Fort Myers, Florida
Posts: 33

In our Motorhome there are 2 pieces 6 Volt batteries in serie circuit, which is the advantage over a 12 Volt battery ? Can i use a 12V battery ?
Thanks and Greetings
Follow the sun

2007 Fleetwood Bounder 35E Ford V10 Triton
H2O4 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 07-24-2017, 06:31 AM   #2
Senior Member
Monaco Owners Club
Join Date: Sep 2014
Posts: 3,734
Originally Posted by H2O4 View Post
In our Motorhome there are 2 pieces 6 Volt batteries in serie circuit, which is the advantage over a 12 Volt battery ? Can i use a 12V battery ?
Thanks and Greetings
Yes, you can use a 12 volt battery. Make sure to take pictures before you do anything.

The advantage of the 6V batteries in the past has been price/availability. It really doesn't matter if you have two 6v batteries that add up to 100 pounds or one 12v. The real issue is making sure they are true deep cycle. This is why so many people use golf cart batteries.
1996 Tioga Class C
400 amp/hrs solar, Trimetric

2007 Monaco Diplomat 40 PDQ
okcnewbie is offline   Reply With Quote
Old 07-24-2017, 08:48 AM   #3
Senior Member
Join Date: Jul 2014
Posts: 24,783
A 12 volt battery with a comparable capacity of 2, 6 volt batteries will be as big as 2, 6 volt batteries. The only way around that is with Lithium battery.

If you always plug in, use one 12 volt battery.
If you boondock, you may want to use 2, 12 volt or 2, 6 volt batteries.

GC2, 6 volt, golf car batteries are guaranteed to be deep cycle.

True, deep cycle 12 volt batteries are more expensive the GC2, 6 volt batteries.
Many 12 volt batteries are a hybrid of starting and deep cycle. Same AH rating but less deep cycles in their life.
twinboat is offline   Reply With Quote
Old 07-24-2017, 10:53 AM   #4
Senior Member
distaff's Avatar
Join Date: Dec 2009
Posts: 1,822
When considering lead/acid batteries you would only choose a 12V deep cycle because you didn't have room for two 6V deep cycles.

With a deep cycle you are interested in a slow, long discharge/charge process and the size of the cells in a 6V is double that of a 12V of the same dimensions. You get a larger reservoir for electrolyte and large plates.

A starter battery has different requirements - it needs to give up a lot of power in a very short time and it should not ever deeply discharge. Even in a starter battery when you get to big output amps the batteries get bigger.
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote
Old 07-24-2017, 11:57 AM   #5
Senior Member
OLYLEN's Avatar
Monaco Owners Club
Join Date: Jan 2008
Location: Olympia, Wa
Posts: 2,771
I would disagree with the the two 6 volt. If the two 12 volt are near the 6 volts I would choose the 12volt. If one goes south you still have 12 volts.

2004 Clss C 31' Winnebgo
OLYLEN is offline   Reply With Quote
Old 07-24-2017, 12:02 PM   #6
Senior Member
MorganT69's Avatar
Join Date: Jun 2017
Location: Eads, TN
Posts: 187
If you have two 6 volt batteries or one 12 volt battery both being Deep Cycle, the 12 will discharge faster, meaning not last as long as the two 6 volt batteries will. Its all about how many PLATES you have in the battery.
2004 Ford F-250 Crew Cab (Powerstroke 6.0)
2017 Forest River Cherokee 265B with GooseBox
MorganT69 is offline   Reply With Quote
Old 07-24-2017, 12:07 PM   #7
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 21,273
A lot of good info at this site.

The 12volt Side of Life (Part 1)
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 07-24-2017, 01:28 PM   #8
Senior Member
Vicr's Avatar
Join Date: Dec 2016
Location: Snohomish, WA
Posts: 173
If you do your homework and look at battery specifications there are 12v deep cycle batteries out there with plates as thick as a 6v. It's a boring read but worth the research.
Vicr is offline   Reply With Quote


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 Cut-off Switch/House Battery Disconnect- 2002 Diplomat 40DST Schrimscher Monaco Owner's Forum 14 11-23-2011 11:09 PM
Battery disconnect on house battery? tekrsq Vintage RV's 3 04-28-2011 07:52 PM
Aux battery/battery boost DEG503 Monaco Owner's Forum 21 01-13-2011 09:05 AM
Battery Tender for house battery, any experience with this? troedw44 Vintage RV's 8 01-03-2011 06:10 PM
house battery corrosion and weird battery auto fill system ClarkBowen Alpine Coach Owner's Forum 8 07-09-2008 05:37 PM

All times are GMT -6. The time now is 02:08 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.