12v MPPT and 24v MPPT vs 24v PWM Test
Got a chance to try out comparing amps to the battery using MPPT vs PWM on a 24v battery bank and comparing those with the usual MPPT on 12v with my 230w panel. The bank is four 6s, so it was easy ...
Forum Discussion
jrnymn7 wrote:
Even with 12v to 12v mppt being more efficient, wouldn't 24v to 12v mppt yield more in the way of Amps to the battery? And would it depend on whether the 24v is from an actual 24v panel, or two 12's in series?
That depends. Two 12v panels in series will have a Voc in the 40s and the conversion to 12v will be less efficient. I know of one system made of 960w using 12v panels in series/ parallel. He boast a peak of 48a, less than I expect with my three 250w 24v panels at peak.
