The Coremax battery as shown in the link is an exciting product. CATL cells are very high quality. Its great that another option is available. But I'm in California and I needed a CEC listed server rack battery and a UL listed battery cabinet. Also, before I purchased, I spoke with my local distributor and also tech support for the company. Both were easily reachable by phone. I purchased the Pytes Ebox. Eight of them in parallel, in 2 cabinets that are UL approved. I placed them 3 feet apart for NFPA 855 and I placed them 24 inches from my garage walls so I could easily access the walls for any maintenance, etc. Paired them with a Luxpower 12k and they have been up and running for 7 weeks now without a hiccup. So in my case, I wanted to be in compliance with codes set in California.