Thread Tools Search this Thread Display Modes
Old 03-19-2012, 12:17 PM   #1
1 Rivet Member
1978 29' Ambassador
Denver , Colorado
Join Date: Mar 2012
Posts: 5
New Owner with MORE questions than answers...

So I am the proud new owner of a 1978 Ambassador International, and she needs a bit of work. I brought her home, plugged into 110 house power, but I am missing batteries and an inverter. From what I have gleaned so far from the forums, is that most people use a auto battery, deep cycle marine battery, and an inverter, to power the 12 volt system onboard. Attached I have a photo of where 2 batteries were stored near the fuse panel. The smaller box on the right is accessed from the outside, and box on left is not. I'm anxious to start working on 12 volt system. Is there a Thread or "How To" for connecting the battery system with the Inverter ?

Thanks much for your wisdom !

Attached Thumbnails
Click image for larger version

Name:	Battery Boxes.jpg
Views:	63
Size:	276.0 KB
ID:	153836  

mountainsun is offline   Reply With Quote
Old 03-19-2012, 01:24 PM   #2
Rivet Master
Aerowood's Avatar

1971 21' Globetrotter
Arvada , Colorado
Join Date: May 2006
Posts: 2,684
Hi from Arvada
The first thing is you do not want to use is an Auto battery but a Deep Cycle battery or batteries. Second you want to use a Converter to convert 115VAC to 12VDC. An Inverter changes 12VDC to 115VAC. If you replace the converter, which you probably should because the old Univolt Converter that the trailer came equiped with will fry a battery fairly quickly.

Aerowood is offline   Reply With Quote
Old 03-19-2012, 01:28 PM   #3
Rivet Master
1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
Johnsburg , Illinois
Join Date: Jul 2005
Posts: 2,923
You can get away with just one battery, if you do not boondock in the cold. You need a converter (not an inverter) to charge the battery and run the 12 volt stuff when plugged into 110. A smart battery charger is a cheaper way to charge the battery than a converter.
dwightdi is online now   Reply With Quote
Old 03-19-2012, 01:39 PM   #4

2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 10,802
Images: 1
Thumbs up Welcome Aboard....

IMHO...I would not keep two lead acid batteries inside the coach.

For sure not open, connected to a univolt.

At the very least, if in the trailer, they should be in a sealed box vented to the outside connected to a modern 3 stage charger.

A quality r/v/marine, deep-cycle high, amp/hour,(100a/h) will work well.

We use 2 grp27 100a/h Lifeline AGM batteries and an IOTA DLS 55a IQ4 Converter.

AF #1

"Sticks & stones can break your bones...and hail will dent your Airstream"

So when is this..."old enough to know better" supposed to kick in?
ROBERT CROSS 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
New Airstream Mhenry2712 Friends of Dorothy 75 11-23-2013 03:14 PM
WBCCI North Iowa unit rall at New Ulm, MN tedh1031 WBCCI Rallies & Events 2 04-12-2012 08:18 PM
02/12: New Tire Discussion on Woodalls: LT versus ST and more. slowmover Tires 128 04-10-2012 05:09 PM
First time with an Equailizer thecatsandi Hitches, Couplers & Balls 81 03-28-2012 10:35 AM
1976 Argosy 24' New to Me b.a.kirk All Argosy Trailers 5 03-20-2012 06:52 PM

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 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:58 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.

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