mppt or pwm An opinion from Victron
Hi all, Victron, which makes high quality equipment, has charge controllers. At the end of an overview they give their description of the differences between PWM and MPPT. They do not support it wi...
Forum Discussion
Hi BFL13,
As the panel heats the output voltage drops. When it is below 14.8 it is not a good thing. If it hits 12.2 then zero charging would happen in most cases.
And yes, panel voltage is dragged down by the state of charge of the battery. However voltage also goes down with heat. Does that clear up what I'm trying to say?
As the panel heats the output voltage drops. When it is below 14.8 it is not a good thing. If it hits 12.2 then zero charging would happen in most cases.
And yes, panel voltage is dragged down by the state of charge of the battery. However voltage also goes down with heat. Does that clear up what I'm trying to say?
BFL13 wrote:
PT what do you really mean by "pwm panel voltage"? Panel voltage = battery voltage so you must mean something else.
I got where they mention in low light the PWM could be doing nothing while the MPPT with the higher voltage can still do something. (This does not affect my camping situation with solar but could affect others)
I see they recommend making up for MPPT temperature loss by just adding more cells. Gee, who knew you got more solar by adding more solar? :)
It is all about your camping scenario as usual. If you only use solar from April to September MPPT won't help, but if you use solar from September to April, MPPT will help. Everyone has to do some averaging for his own scenario.
