Either way, you’ll gain some with MPPT, more so in series, but at more of a loss too in shady conditions - a compromise combination of series-parallel could help at mitigate shading losses, but since you’re going with LiFePo4’s, understand that unlike the high chemical soup resistance associated with wet cells, Li charge receptivity is uber high (i.e low internal resistance), along with a uber high amp charge rate, which means far quicker recovery times, including a greater ability to exploit ‘off-peak’ harvest hours (and those critical winter hours), enhancing even a less than optimum harvest - I see this is as a huge benefit with Li ...Having said that, one controller is better that two competing controllers...
3 tons
