SOK LiFePo4 batteries with FlexBoss21?

I just ordered a FlexBoss21 and Gridboss and will be installing it in the next month or two. I am looking for batteries to go with the system for power outages. Currently looking at a couple of the SOK SK48V100N. Do those work well with the FlexBoss21 or EG4 in general? What are your recommendations?

I will be installing about 21.6kW of panels on my roof, half and half on the east and west faces. I am in SW Ohio so we have 1:1 net metering, so the batteries are mainly for power outages. Power goes out about once a month, usually for less than an hour, but sometimes for a day or two.