12v from 24v Battery Bank ?
With two 12vs in series and the 24v charger on the other two posts, can you draw 12v at the same time as they are being charged at 24v, from the pos and neg of just one of the batts? If so, will th...
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The 12/24 PWM controllers I have used do not list their Voc limits like the MPPT controllers do, so that remains a gamble. I did try the $15 RJ Special I had with the 230w panel to see if it would just run it to its Isc. I didn't mind risking the $15. :)
The controller's little red lights (several of them) all flashed rapidly and no amps got to the battery. I figured it was fried, but then tried it on a 130w panel and it worked properly.
I have not tried that with the Solar30 controller so it remains a mystery if it would run the 230w or not on 12v batts, and fry or not.
I have tried the 230w in panel- direct as a test, and it did that ok.
Now I am wondering if my summer problem with MPPT and panel heating reducing the amps I get compared with PWM could be got around by charging the batts with PWM in 24v. Not sure how I could check that out as a field test this summer. Have to work on that.
The controller's little red lights (several of them) all flashed rapidly and no amps got to the battery. I figured it was fried, but then tried it on a 130w panel and it worked properly.
I have not tried that with the Solar30 controller so it remains a mystery if it would run the 230w or not on 12v batts, and fry or not.
I have tried the 230w in panel- direct as a test, and it did that ok.
Now I am wondering if my summer problem with MPPT and panel heating reducing the amps I get compared with PWM could be got around by charging the batts with PWM in 24v. Not sure how I could check that out as a field test this summer. Have to work on that.
