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Old 01-19-2015, 08:20 PM   #1
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Northern tool solar battery charger twin pack

Will this work to keep my 2 house batteries, and engine battery charged when not in use.
The twin pack is 25.00.




Coleman Solar 12 Volt Battery Maintainers — Twin Pack, Model# 58215 | Amorphous Solar Panels| Northern Tool + Equipment
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Old 01-19-2015, 08:57 PM   #2
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1.5 watts is a little small. According to how far north you are, winter sun is much lower in the sky and for less time than in warmer months. I'd think 1.5 watts is their maximum rating, under ideal conditions. RV's factory equipped with an RV solar charger is usually at least 5 watts and I wouldn't spend money on one with less than 10 - 15 watts output.

In storage, if you use a cut off switch to make sure batteries aren't connected to anything, I've had fully charged batteries still good after 4 months of Ohio winter a couple of years in a row.
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Old 01-19-2015, 09:37 PM   #3
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Quote:
Originally Posted by IamJerryP View Post
Will this work to keep my 2 house batteries, and engine battery charged when not in use.
The twin pack is 25.00.




Coleman Solar 12 Volt Battery Maintainers — Twin Pack, Model#

58215 | Amorphous Solar Panels| Northern Tool + Equipment
no, not enough...
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Old 01-20-2015, 08:28 PM   #4
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Nope.
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