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
pianotuna wrote:
Hi,
60 cells, in theory, can not produce 30 volts. Each cell is usually slightly less than 0.5 volts. Of course, that is some what vague. There is usually a diode which will lower output by about 0.7 volts.
I would love to know what the voltage is at "first light" and at dusk.
What voltage are you talking about for first light and dusk?
My 230w panel gets my batteries to 14.8v every day using the MPPT controller in 24-12. I will be surprised if I can't do the equivalent at 24-24 since it is all the same watts (eeew, I said "watts" )
If the MPPT can do it in 24-24 why couldn't the PWM in 24-24? the OP shows that the MPPT and PWM did the same at 24-24 at 25.5v so I imagine ( not much value there!) they would do the same at 30v. If one can do it, then so should the other?
