Hello Spiceheads, some advice here please.
Instead of replacing the batteries in the 3 tower UPS there must be a better solution such a rack unit or a larger all in one tower style UPS.
They protect 2 servers maybe a monitor, a copier machine, router and managed switch possibly more.
I suspect they are overloaded.
The site has occasional power issues in good weather and outages in the storm season which is about a month away here in Oz. 