Jayco RV Owners Forum

Thread Tools Display Modes
Old 04-13-2012, 03:36 PM   #1
Senior Member
Tom Copeland's Avatar
Join Date: Apr 2011
Location: Jacksonville, NC
Posts: 167
2nd house battery

Thinking of adding a 2nd house battery to our Melbourne. Tray has space for it. Anything special I need to lookout for?

Tom Copeland
2011 Melbourne 29D
Tom Copeland is offline   Reply With Quote
Old 04-13-2012, 07:54 PM   #2
Join Date: Mar 2012
Location: Ontario, Canada
Posts: 61
Make sure you wire them parallel so that you maintain 12v, positive to positive, negative to negative. If you wire in series, the voltage will double to 24v, positive to negative. You only want to wire in series if you were using 2 6v batteries to give you 12v, but if you're using 2 12v batteries you want to maintain 12v so therefore wire in parallel. Also make sure to use the correct gauge wiring depending on you DC amp draw.

Also, always best to use 2 fresh batteries as an older battery could bring down a newer battery once they are connected. For example, batteries will equalize when wired parallel. So if one battery was 12.4v and the other was 12.8v, it would measure 12.6v when they are combined. Usually a good fully charged 12v battery will measure 12.7 - 13v with no load. Also measuring your old battery with just a volt meter won't tell true battery health, you should do a load test on your existing battery to insure it is still performing as new. Make sure you use deep cycle batteries and good luck.

Hope this does not confusing!
2010 Jayco 17z - Sold
2009 KZ Sportsmen 256BH
2011 Dodge Ram 1500 Laramie 4x4 Crew
cablerum is offline   Reply With Quote

Thread Tools
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

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 01:23 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.