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Old 09-05-2016, 06:30 PM   #1
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Battery help

Ok, I know that this subject has been covered in various ways but I'm going to approach it again. I have started to do my homework on installing permanent solar panels on the roof that I could trickle charge the two coach battery's while we are not using the unit. I have a 2011 337DS so I would appreciate hearing from any of you that have successfully done this, and of course photos will get "extra credit"!
Thanks in advance...
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Old 09-05-2016, 06:33 PM   #2
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My factory install is a 10 watt panel used to maintain 3 group 31 batteries. As a maintainer only, it works fine. Batteries must be fully charged before storage.

How will you maintain your chassis batteries?
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Old 09-05-2016, 06:43 PM   #3
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Thanks Bluepill, you say yours is factory? I'm somewhat new to this so was not aware this was a factory option, but it does make sense.
I'm looking for information on reliable panels and electrical components to use in an aftermarket install.
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Old 09-05-2016, 07:21 PM   #4
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Factory installed on my motorhome. Circuit is just a panel with a reverse blocking diode. No controller needed because of the small output of the panel (about 0.7 amps maximum).

If you are just using for off-seasonal storage, you don't really need a permanent installation. Just a line from the panel to the batteries, connected with small alligator clips. If you want it for short-term storage between uses, it would probably be worth a roof top installation.

Something like this:

Battery Tender 021-1163 5W Solar Maintainer

Copy & Paste description into google.

You may need more than 5 watts if you total Amp Hour battery capacity is over 150.
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Old 09-05-2016, 08:00 PM   #5
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Thanks Bluepill, sounds like what I'm interested in!
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