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Old 10-08-2018, 11:00 PM   #1
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New to solar and winter is coming

HELP!! I'm in the process of preparing the Safari 23 for its first Alaskan winter. Before I disconnect the batteries how should I go about stopping the flow of energy from the solar panels to the batteries?
Thanks in advance
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Old 10-08-2018, 11:31 PM   #2
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Should I assume that you have a factory solar installation? If so, I would try to locate the solar controller and disconnect the yellow wire coming from the positive terminal of your panels to the controller. This will prevent the solar controller from trying to charge the 12 V buss if your panels are exposed to light.
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Old 10-08-2018, 11:50 PM   #3
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Originally Posted by alano View Post
Should I assume that you have a factory solar installation? If so, I would try to locate the solar controller and disconnect the yellow wire coming from the positive terminal of your panels to the controller. This will prevent the solar controller from trying to charge the 12 V buss if your panels are exposed to light.
Yes these are factory installed I will follow this advice when I get a chance. Hopefully tomorrow thanks.
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Old 10-14-2018, 10:40 AM   #4
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You really should have a cutoff switch installed between the panels and the solar controller. Easy to do.
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Old 10-14-2018, 10:52 AM   #5
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Originally Posted by Raminc View Post
HELP!! I'm in the process of preparing the Safari 23 for its first Alaskan winter. Before I disconnect the batteries how should I go about stopping the flow of energy from the solar panels to the batteries?
Thanks in advance
If you are leaving batteries in the trailer, the solar will act as a trickle charger keeping the batteries topped off thus from freezing.
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Old 11-06-2018, 03:32 PM   #6
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…….or just cover the panels.
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Old 11-06-2018, 03:37 PM   #7
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Hi

With factory solar, there is a fuse in the positive wire coming from the panels. If you want to disable solar, just pull that fuse. It's not at all clear *why* you would need to do that ....

Bob
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Old 11-06-2018, 05:43 PM   #8
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Personally, it's nice to have cutoff switches in the wiring from stuff that generates current, solar panels are not that dangerous, but batteries can be a real flash burn hazard inside a tin can...just sayin'
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Old 11-07-2018, 09:32 AM   #9
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Personally, it's nice to have cutoff switches in the wiring from stuff that generates current, solar panels are not that dangerous, but batteries can be a real flash burn hazard inside a tin can...just sayin'
Hi

Generally that's why we have fuses ....

Bob
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Old 11-07-2018, 10:53 AM   #10
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True, fuses sort of work, but are not that convenient for maintenance shut-downs.

When I have my fingers in the hardware, I much prefer a positive disconnect that I don't have to crawl under the couch to get at. A nice Blue Sea Systems M-series disconnect switch is a twist of the wrist away from rendering a circuit safe. Then it gets a warning sign and a piece of duct tape to make it darn hard to "helpfully" turn it back on...

One on the battery positive, the other on the hot side of the solar panels would be the minimum, IMHO. A similar switch on the inverter input, assuming I had one..

"Tag-out, Lock-out" procedures have saved my butt too many times working on shipboard systems and big 440 volt three phase-powered industrial systems--it's not just a good habit, it's heavily enforced by OSHA...and trust me, those folks are NO fun to deal with when something or someone screws up!

Personally, I figure being alive and undamaged is way superior to the alternatives...
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Old 11-08-2018, 08:13 AM   #11
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Hi

First off, given the voltages involved, (this *is* a 12V system) the odds of electrocution are pretty slim ( = worry more about getting hit by space debris). Putting 440V into the same category as 12V is more than just a stretch.

Bob
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Old 11-08-2018, 08:32 AM   #12
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Quote:
Originally Posted by Raminc View Post
HELP!! I'm in the process of preparing the Safari 23 for its first Alaskan winter. Before I disconnect the batteries how should I go about stopping the flow of energy from the solar panels to the batteries?
Thanks in advance
\



So...your going to disconnect/remove the batteries for Winter storage? (good idea where you are)
Just insulate the battery cables, the solar current won't go anywhere. Just as the charge current from the converter doesn't when plugged in with batteries removed.

Disclaimer...at times my comprehension does not match the intent of the written word.



Bob
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