Oops, sorry for the lack of update on that. So since then, here is a relative guide since then. The top 6 account for about 300 units.
Translated into models is: APC 3000va 3U, APC 3000va 3U XL, APC 5000 SURT, APC 2200 3U, APC 3000va 5U XL, and the APC 1400 2U.
