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Post by jeep2liberty on May 26, 2019 22:00:29 GMT
Specific question about the Rover Li 40 Amp controller. I want to add additional PV panels to the system for cloudy day collection. I fully realize I don't need additional panels in full / partial sun. My question is specifically, if I add more input / panels that go FAR beyond the max power (for my 12v system, of 550W / 40A charge power) will it damage the controller in full sun conditions?? For clarity, if I provide more power input than is needed (on sunny days), will the Rover Li 40 Amp self regulate properly? My Open Circuit (O.C.) voltage is 41V (two banks of 12V panels in series) total 640W now, but proposed adding 270W additional. I am quite ok with 40A max in sunny weather. I hope I provided all data for a correct answer.
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Post by bupkis on May 27, 2019 1:06:58 GMT
I'm not sure renogy states how over powered one can exceed the 40A battery charging rating, other companies do - as much as 3x the rated amps.
The controller is supposed to clip excess battery chargin amps over 40A
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Post by tattoo on May 27, 2019 1:14:19 GMT
You should be just fine...... I had more than suggested power input to my 40a CC and I never had any problems..........
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Post by jeep2liberty on May 27, 2019 12:25:25 GMT
I found a R// doc stating "...Therefor, an over sized solar array will not operate at peak power." and this was under the "PV overcurrent" section of "Rover Protections" section.
I am assuming this will not damage the controller, but allow for more collection in cloudy / rainy weather. This is an RV system, so not many other options exist (that are quiet anyway).
Thanks for the answers and comments all ! :-)
Curtis
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Post by tattoo on May 27, 2019 21:21:57 GMT
You didn't ask if it would work at peak power you asked if it would hurt the CC.........
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