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Solar panel question #7992279 09/29/20 05:06 PM
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Ratrod101 Offline OP
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For the guys that have a 12v thrower system on their feeders AND have checked V output, what should a 12v panel put out as far as volts? I have never checked and had one go bad...I had a 12v panel, about twice the size of the standard size you typically see on feeders, but when I checked output, it was between 23-24V...seems high.


Re: Solar panel question [Re: Ratrod101] #7992310 09/29/20 05:30 PM
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Archer Anthony Offline
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See if it has an output rating. That does seem high for a 12 volt solar panel. Also check amperage if you really want to see output


That's what she said
Re: Solar panel question [Re: Ratrod101] #7992379 09/29/20 06:25 PM
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Texas Dan Offline
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That's about what I measure across the leads of the solar panel I use to keep my ATV battery fully charged. For what it's worth, mine measures about 12x14 inches and puts out about a half-amp of current in full sunlight.

Last edited by Texas Dan; 09/29/20 06:26 PM.

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Re: Solar panel question [Re: Ratrod101] #7993199 09/30/20 11:35 AM
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Depending on size, anywhere between 13-17v.

Re: Solar panel question [Re: Ratrod101] #7993838 09/30/20 09:20 PM
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It all depends on the panel, I’m a solar junkie so I’m pretty familiar with them. What size panel is it? I’m guessing it’s a 20 watt by your description but let me know and some of them put out that many volts and they require a charge controller. If it’s putting that voltage out your battery will be fried pretty quick. A small charge controller that size is only about $8.

Re: Solar panel question [Re: Ratrod101] #7994012 10/01/20 12:02 AM
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For what it's worth, here's a photo of the output data that's on the back of the solar panel that I used to maintain a charge on the 12-volt battery in my RV. It gave me many years of dependable service before I finally sold the RV.

It's my understanding the voltage produced by a solar panel is much like the pressure behind the air in a balloon. While it may seem like a lot, it won't last unless you bleed it slowly.

[Linked Image]

Last edited by Texas Dan; 10/01/20 12:21 AM.

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