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Old 12-16-2016, 04:03 PM   #1
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arktos55343's Avatar
1972 25' Tradewind
Hopkins , Minnesota
Join Date: Sep 2012
Posts: 457
AGMs in freezing temps

I am in Minneapolis. My AS is in storage...with a 50w solar panel (admittedly not getting a whole lot of sun right now) keeping a charge on the batteries (2 6v AGMs). I stopped in today to check on things...my multi-meter showed a charge of 14.57v at the battery terminals. I understand that AGMs are resistant to freezing....but 14.57v seems high on a cloudy day. I didn't remove the batteries because I am hoping for a break in the weather right after Christmas...so I can take off for Arizona. We're going to have several days of snow and extreme cold...and then back up in the 20s during the day.

Do you think my 4 year old batteries will survive this assault?

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Old 12-16-2016, 05:43 PM   #2
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2015 27' FB International
2006 25' Safari FB SE
2004 19' International CCD
Santa Fe , New Mexico
Join Date: Feb 2007
Posts: 1,847
Sounds like the solar charge is working if that's the reading. As long as the batts are getting a trickle charge they will survive the cold.
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Old 12-16-2016, 05:45 PM   #3
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1976 25' Caravanner
Salt Lake City , Utah
Join Date: Oct 2013
Posts: 397
Here is the Lifeline Technical Manual. Even if you have another brand, I would imagine the parameters would be similar. There is a section that discusses the temperature ranges.
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File Type: pdf Lifeline Technical Manual.pdf (1.77 MB, 105 views)
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Old 12-16-2016, 06:18 PM   #4
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1972 25' Tradewind
Hopkins , Minnesota
Join Date: Sep 2012
Posts: 457
Thanks very much for the useful information. I may need to put skiis on the AS to get out of town....the way the weather is shaping up.

Peaceful Holidays to all!
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