Thread Tools Search this Thread Display Modes
Old 03-12-2012, 01:53 PM   #1
Wise Elder
Jammer's Avatar
2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
Join Date: Dec 2009
Posts: 4,129
Second battery in tow vehicle for boondocking

This summer I'm planning some trips to campsites which, while developed, lack electricity. We will remain camped and take the tow vehicle out for side trips most days.

To make this work, I'm planning on adding a second battery to my tow vehicle. Most full size trucks that do not utilize an engine technology that requires two starting batteries have parts available to mount a second battery.

I'm doing this to my pickup as part of my Avion C-11 project and to my Suburban for towing the Airstream.

For my 1997 Chevrolet pickup, there's a battery tray available that mounts on the left side, over the washer fluid reservoir. Mine had that in place when I got it. It holds a Group 24 deep cycle battery but height is a problem with the hood hitting the positive terminal. I'm either going to modify the hood or put together a reduced-height terminal bus arrangement for the positive side. The negative terminal has good clearance.

For my 2004 Suburban, there's also a tray available. It mounts on the passenger side, close to the firewall, in place of the corner support between the fender and firewall. I just got the parts today and will be trial-fitting a Group 24 in there as the vertical clearance appears to be very tight and may not work.

If I can't make it fit I'll have to use an ordinary starting battery instead and put up with the shorter lifespan.

Once the batteries are physically in place, I'll disconnect the charge line from the fuse block and (with proper overcurrent protection) connect it to the deep cycle battery. I'll also connect the alternator to the battery, through an isolation relay. The result should be that I can operate the trailer electrical components off the auxiliary battery in the two vehicle by connecting the umbilical and placing the store/use switch in "store." When we leave the campsite we can place the store/use switch back in "use" before disconnecting the umbilical, and then the auxiliary battery will charge while we drive.

Photos to come.
Jammer 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
newbie with a tow question echo44 Tow Vehicles 47 06-12-2013 04:42 PM
Tips for Traveling with a cantankerous man Mrs. Tin Hut On The Road... 30 06-24-2012 09:32 PM
Tips for traveling with a fussy woman Tin Hut On The Road... 59 06-19-2012 11:47 AM
Electrical supply for 1967 26ft Overlander iAaz Electrical - Systems, Generators, Batteries & Solar 0 03-12-2012 12:56 PM
Removing Windows in '61 Safari dprmcr Windows, Doors, Locks & Vents 4 03-12-2012 11:57 AM

Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:08 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.