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Old 03-11-2014, 05:10 PM   #1
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Solar battery minder recommendation

I looking for a basic trickle charge solar panel so that the batteries are maintained while in storage. Could be in storage for a week or two, or several months over the winter.

I suspect that I will roof mount, flat, just above the power closet.

4x 12v , 80amp
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Old 03-11-2014, 07:40 PM   #2
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Originally Posted by Jmooney View Post
I looking for a basic trickle charge solar panel so that the batteries are maintained while in storage. Could be in storage for a week or two, or several months over the winter.

I suspect that I will roof mount, flat, just above the power closet.

4x 12v , 80amp

BatteryMinder is the most frequent hit on the internet , but clearly states that mounting solar panel flat will result in water damage and failure.

I have to assume that the boon dockers have their panels up on the roof.

What should I look for?
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Old 03-12-2014, 09:31 AM   #3
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Quote:
Originally Posted by Jmooney View Post
I looking for a basic trickle charge solar panel so that the batteries are maintained while in storage. Could be in storage for a week or two, or several months over the winter.

I suspect that I will roof mount, flat, just above the power closet.

4x 12v , 80amp

80 amp? maybe you mean watt... if left flat in snow country they will not work as the snow will cover the panels.. they need to be tilt-able.
when I read trickle charge I came up with these
http://www.amazon.com/s/ref=nb_sb_ss...ckle%20charger
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Old 03-12-2014, 09:05 PM   #4
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Actually I meant that the battery array was 4 12 volt , 80 amp batteries
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Old 03-13-2014, 10:49 AM   #5
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Actually I meant that the battery array was 4 12 volt , 80 amp batteries
OH OK... you would be better off with 2 Trojan T105's (6 volt wired together for 112) this would give you 220 ah and much longer battery life.
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2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
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Old 03-13-2014, 11:25 AM   #6
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Yup - but they are new, so Im sticking with the 12 volt array for now.

4 x 80 = 320 amp hour.

In the end a solar changer, I think, is more concered with amp charge rate, that if the 12 volt array is in series or parrellel.
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Old 03-15-2014, 02:34 PM   #7
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Re-posting in hopes of any feedback from anyone using a 15 watt Solar panel with a BatteryMinder ( brand ) product.

It appears to produce about 1 amp float charge.

I think the math says that it should at least maintain the natural loss within the batteries while in storage.

Anyone?
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