What people here are missing - I think - is the voltage drop in a battery wire that is too long and thin. Lost amp-hours in MPPT mode have nothing to do with this. BlueSky is not a "top notch" brand, it's a OK brand, and as with any brand, some models are cheaper and have less features than other. I looked at the wiring diagram and didn't see anything to connect the voltage sense wire. Which means, the controller has no way of "knowing" the real voltage on battery terminals, and due to 22ft length this voltage will differ from the controller output voltage.
This will result in either a) batteries won't charge fully - stupid green light on OEM panel tells very little as we all know, or b) they will be kept at voltages that are not optimal. In either case, battery life will shorten.
I also suspect that he skipped temperature sense wire, given 22ft distance to batteries.
4 days waiting list for this installer in QZ only shows low level of knowledge among his clientele. This guy should've been flooded with lawsuits - not with work orders. People don't do their homework.
2oldman wrote:
And judging by my conversations with most boondocker RVers, they don't know what they're talking about.
Yes. People wintering in the South are mostly retirees. DC wiring is not what most people were dealing with during their younger years, and solar technology is new, and retirees are - usually - not into learning new things.
