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ThisOldRV Online Forum  
Forums > Mechanics Corner > Engines
Subject: Battery isolators
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es SurferUser is Offline
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08/28/2007 6:25 PM  
Hi jsteiner4,
With the engine off and the ignition off, and we look at the three terminals, the top one had 12.5VDC, the middle had 1.2VDC and the bottom had 12.3VDC.
I hope this helps
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Marietta, GA
08/28/2007 11:03 PM  
Thanks both of you for checking. I've ordered a new battery isolator and going to install it tomorrow hopefully that will solve my problems. I'll let you know tomorrow.

Thanks again.
Brian Paden
1992 Monaco Crown Royale
1985 Airstream 345 (For Sale)
85/345User is Offline
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Marietta, GA
09/04/2007 10:24 PM  
Well the battery isolator fixed the problem. Got it installed and everything is charging correctly.
Brian Paden
1992 Monaco Crown Royale
1985 Airstream 345 (For Sale)
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Louisville, KY
09/05/2007 11:52 AM  
Way to go Brian!
Steven Webster
1986 Airstream Classic 345
Host, ThisOldRV.com
85/345User is Offline
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Marietta, GA
09/08/2007 11:46 PM  
What's really funny about all this is the alternator problems I'm having with the 345 were related to the battery isolator to. I just figured I would check the battery isolator on the 345 and sure enough its not working either. What are the odds. Thats just my luck.
Brian Paden
1992 Monaco Crown Royale
1985 Airstream 345 (For Sale)
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Louisville, KY
09/09/2007 6:48 AM  
Ah, the beauty of multi-motorhome ownership!
Steven Webster
1986 Airstream Classic 345
Host, ThisOldRV.com
jsteiner4User is Offline
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12/26/2007 6:01 PM  
Thanks to everybody that responded. I finally just took the time to trace every wire out. [ This was because of a total no charge condition that cropped up.] Every thing was hooked up correctly, I was missing a 50 amp fuse link [ $3.50 at NAPA ]  The cause of my no charge condition?  A corroded fuse holder on the coach was not letting ignition voltage to the alternator. Go figure, 20 yr. old coach. Anyhow thanks to everyone. Next project, Banks Power Pack. Its in two big boxes in my garage, came the day before christmas, wife wouldn,t let me work work on it christmas day. More on this project later.
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Forums > Mechanics Corner > Engines > Battery isolators


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