There was a recent post referencing 24V solar panels that got my curiosity up.
So it looks like it's possible to buy 100W 24V panels for under $200.
I then took a look at a MTTP charge controller for 12/24V.
Though it looked like one of the charge controllers I looked at had a 20V max input voltage for charging a 12V bank. That seemed a little low.
I had actually already started wondering if the norm was to use 24V solar arrays, run it through a controller, and use it to charge a 12V battery bank. The idea being that a 24V array may not always put out 24V, but would hopefully put out enough to charge a 12V bank for a much broader range of time, and using a charge controller, it would be no problem.
Forgive my ignorance of solar systems - but would it make sense to use a 24V panel with a 12V battery?
John
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Posted by: oak <oak_box@yahoo.com>
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