More MPPT Confusion and Question
Still trying to understand my MPPT set-up and what would be the effect of changing things a bit. My 230w (30.0 Vmp x 7.7 Imp) poly panel has a Vmp of 30.0v with a measurement tolerance of +/- 3% S...
Forum Discussion
Voltage calculator says my panel to controller connection is equivalent to #7 gauge copper (pair at 35ft one way at 29v and 8 amps) and I have approx. 1% loss with that 0.3v drop
It is actually a hodge-podge of jumper cables and wiring and connections that could be tidied up better ( panel is portable out away from trailer)
I take such a hit on the panel power from sun heating it (10% power loss) that I am not sure how much good it would do (in amps to the battery) in the big picture even if cut my voltage drop to 1/2 %
I just don't know enough about MPPT to figure what that drop I have now does to the controller output where it thinks the Vmp it picks is one thing and it is actually 0.3v different from that.
It is actually a hodge-podge of jumper cables and wiring and connections that could be tidied up better ( panel is portable out away from trailer)
I take such a hit on the panel power from sun heating it (10% power loss) that I am not sure how much good it would do (in amps to the battery) in the big picture even if cut my voltage drop to 1/2 %
I just don't know enough about MPPT to figure what that drop I have now does to the controller output where it thinks the Vmp it picks is one thing and it is actually 0.3v different from that.
