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
Like MPG ratings for cars, the rated specs on a panel is something most will never see. This is just a way for them to give us realistic expectations and not send the panels back because they don't put out rated levels.
I spent the weekend staring at either a DVM or a thermometer taped to the back of my panel. It was the high 60's and the highest I saw was 120 f or 48,89 c. Since my panels track the sun there isn't much I can do. If I change the tilt and get a lower temp, I loose amps.
My biggest decrease in output was going from the mid 80s to the 90s, from the 90s to 120 did drop output some but only a tenth of a amp.
BTW if you are checking for short circuit amps on a cheap meter, do it fast. Those leads get hot quickly.
I spent the weekend staring at either a DVM or a thermometer taped to the back of my panel. It was the high 60's and the highest I saw was 120 f or 48,89 c. Since my panels track the sun there isn't much I can do. If I change the tilt and get a lower temp, I loose amps.
My biggest decrease in output was going from the mid 80s to the 90s, from the 90s to 120 did drop output some but only a tenth of a amp.
BTW if you are checking for short circuit amps on a cheap meter, do it fast. Those leads get hot quickly.
