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Solar panel charger under shrink wrap?

Old 12-04-2019, 11:11 AM
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Default Solar panel charger under shrink wrap?

Anyone ever left a solar panel on the cockpit deck under the shrink wrap? There seems to be plenty of light coming in through the translucent wrap but Id like to hear if anyone has tried it.
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Old 12-04-2019, 11:15 AM
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Originally Posted by StandingSeam View Post
Anyone ever left a solar panel on the cockpit deck under the shrink wrap? There seems to be plenty of light coming in through the translucent wrap but Id like to hear if anyone has tried it.
are you stored afloat or ashore?

you dont need a charger if your batteries are completely charged and disconnected (so there is no drain). obviously that is not a good idea if you are stored afloat (to disconnect batteries if that will disconnect bilge pumps etc).
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Old 12-04-2019, 11:47 AM
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I keep mine connected all winter under the wrap on my wet-slipped boat, my panels are under the windshield all year. There's also a regular battery charger connected to shore power so it's not the only means of keeping the batteries charged, but it's less work than disconnecting & storing the panels then re-setting everything back up in the spring. I don't have any kind of meter on the charge controller but I'd imagine that with the reduced daylight hours & not being in direct sun it's less useful than during the summer, but it should still put out at least a small amount of current.

It's not gonna keep the pumps running for very long in a hypothetical emergency where I also lost shore power, but I'm also not going to go to the lengths of keeping an extra generator on standby for that scenario either.
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Old 12-04-2019, 12:43 PM
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Mine was charging until the snow came.
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Old 12-04-2019, 02:51 PM
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The eye is very adaptable to light intensity. A Photovoltaic panel is not. If it charges at all under the film, it will be at a very low rate.
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Old 12-04-2019, 02:57 PM
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Those panels don't even work well when they are hit with sun at an angle. I'd be surprised if it did much of anything under a wrap.
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Old 12-04-2019, 03:23 PM
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make sure you dont just buy a panel, it has to be able to control it as well you will need a charging regulator or just buy an all in one kit


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