Solar Help
I have an older Class B motorhome and have been thinking about solar. I can boondock now for 2 days before I have to recharge my 125ah battery. The only thing that draws power is the 12V fridge whic...
Forum Discussion
Hi BFL13,
My point is that 17 volt panels are better than 22 volt when using a PWM technology charge controller, so he has nothing to worry about if say the panels were 16.5 volts.
It is true the output voltage is controlled by the battery on pwm.
It is true that lower voltage so long as it is around 17 is better when using pwm.
It is true that with 36 volt panels one would be nuts to use pwm. MPPT would be the way to go then.
I've never seen a 15 volt panel. That would be a rare bird indeed.
My point is that 17 volt panels are better than 22 volt when using a PWM technology charge controller, so he has nothing to worry about if say the panels were 16.5 volts.
It is true the output voltage is controlled by the battery on pwm.
It is true that lower voltage so long as it is around 17 is better when using pwm.
It is true that with 36 volt panels one would be nuts to use pwm. MPPT would be the way to go then.
I've never seen a 15 volt panel. That would be a rare bird indeed.
