Did a charge with the Tracer, yesterday, and everything seems well and good. No issues with controller. Looks like less than 1/2 of one percent voltage drop thru 50' of 6awg. The 30a audio circuit breaker, on the input side, shows zero voltage drop to two decimal places, at about 7a.
Controller did drop into float at one point, for about 5 minutes, and then returned to boost. It was hazy out, with the odd low lying grey cloud passing by. Apparently this caused enough power drop that it switched to float... but not sure why it would do that? It's response time to the ever changing conditions seemed quite reasonable, though.
I checked boost time, it was indeed set at 180 min., and there were no error codes recorded. I think that shut down the other day, may very well have been a result of the Sun being far down in the w/nw, at 8pm, and partially cloudy. No problem this time round. Managed to make it to near full again... weather was not very co-operative.
I switched charge mode from soc to temp comp. Interestingly, on page 4 of monitoring, 'battery', it stilled showed soc, but it went up and down with panel power. Even when it said 100%soc, it didn't go into float. I imagine that has to do with the setting, but not sure. It went as low as 50%soc at one point, when panel power was in the 50w range (out of 280w), due to it being evening, and the odd dark grey cloud passing thru.
Amps tapered earlier than I expected, but apparently that's common with mppt controllers? Nevertheless, it remained in boost for all but that 5 min switch to float and back. I saw mostly mid 15's to mid 18's throughout the late morning, early afternoon period. The most I've seen out of the panels is about 300w, tracked... well above their 280w (2x 140w) rating.
