Since the Sol-Ark 15k has two Battery inputs in it, could I just connect both racks independently to the Sol-Ark and only need to chain the BMS's 1-12 together. I read that the Sol-Ark 15k battery hookup is just a mini-combiner box anyway.
I'm new to this, but planning on some expansion.. I was thinking of starting with 2 racks and 6 batteries, but 3 in batteries in each rack to start. With each rack independently connected to the Sol-Ark.. Then could load up each rack over time as $$ allows to expand it.