Anybody have a solar battery maintainer or attic fan?

[YY1]

I've been looking at a zero recurring cost way to help cool my shop.

I'm thinking a solar vent fan is the way to go.

So far the ones I can afford seem pretty dang rudimentary

for $160 there's a 12" 60w fan and a 50w panel with a rudimentary controller with a battery tap. It basically runs the fan when it's light ans stops when it's not.

Not sure if the battery maintainers operate the same way but I'd sure like to find one with a true maintainer circuit.

 

[YY1]

nobody?

 

[69a100]

I've been studying and understand the subject as I'm looking to deck out a RV. I don't quite understand what your saying or trying to say? This line makes no sense?

for $160 there's a 12" 60w fan and a 50w panel with a rudimentary controller with a battery tap.

Do you have a link?
You need a solar panel, charge controller, and battery and if it's a 12V fan, that's it. If it's a 120V fan, then you need a converter. For a on/off switch, you'd need to find something that allows it to turn on at sun up, and off when down, or you do it manually. Do a solar search on your favorite search engine to learn more. Good Luck

 

[YY1]

https://www.ebay.com/itm/50W-Solar-...072765?hash=item2abc6fd7bd:g:zKIAAOSwiwZb95d4

 

[YY1]

...and the problem with the solar battery maintainers I've seen is that there is no control circuitry like a typical maintainer that shuts off the charging when the battery is charged.

 

[Bb70charger500]

I was thinking of a fan or two in my attic

 

[69a100]

I bet with a little more shopping, you can save some coin. If you can find a fan like that E-gag ad has for under a "C" note, there's this. https://www.homedepot.com/p/Grape-Solar-50-Watt-Off-Grid-Solar-Panel-Kit-GS-50-KIT/206877151
And if you really want to CYA with solar, you could go with a 100 watt panel instead even though they say a 50 will work. Then you'll never have to worry even with some cloudy days, it'll help. Good Luck