Solar Panel Voc-MPPT?
Wondering if there is any relationship between measured Voc and MPPT performance with a 24v panel. My 12v panel has a Voc rating of 21.9 and Isc of 8.2, but I often see 8.2ish when Voc is only 20....
Forum Discussion
pianotuna wrote:
Hi Ken,
So how does an MPPT controller "know" the voltage increase necessary?
I have added a switch so I can "force" equalization voltage when ever I so wish.
On an entirely different note I checked all electrolyte levels yesterday. Really there is almost no loss--the levels are about 3/4 of an inch above the plates. One set of batteries is 8 years old and the others are four years old. I attribute this--rightly or wrongly--to very low amperage charging...
By using complicated (typically proprietary) algorithms based on battery type and user options selected.
As I'm sure you know, the whole purpose of the controller is to deliver maximum, safe, charge to ensure long battery life and optimum battery performance.
If there is no concern with battery life, any solar panel could be connected directly to any battery without the aid of a controller, and it would work for awhile, but I wouldn't recommend it...
Oh, and it would be a poor ROI even though the initial cost is cheaper than a controlled system...
:)
