Quick Test of Eco-Worthy MPPT Controller
Ordered it on 3 Oct arrived at the door 23 Oct free shipping. Controller rated to 42V so watch that. EG I have it on one 230w panel, Voc 37v at 25C, so would be more Voc at cold temps. Not ab...
Forum Discussion
Almot wrote:BFL13 wrote:
It says it will handle 600w at 24v but 300 at 12v.
I guess they mean that it can "handle" 300W input without going up in smoke (provided the input voltage is within 42V). Controller output at this point would be clipped down to 20A, i.e. ~270W.
most of the MPPT controllers have an input power limit and an output current limit.
So, if this is like the "typical" MPPT controller, max input power is 600W.
On the output side there is a "hard" current limit circuit set to in this case 20A.
So, if your connected to a 12V battery, max output power is about 300Wish (15Vx20A) and the input will adjust accordingly to supply that level of power even if the panel can provide more.
If your connected to a 24V battery bank, same limit of 20A, but in this case max power would be 600Wish (30Vx20A).
