I have a Middle Atlantic UPS-1000R installed in our P-ACP rack that is used to power the P-ACP and the network switches. To my knowledge the battery in it has never been replaced and the unit is original to the building (circa 2013), and based on previous experience with UPS batteries, if this is the case it is definitely past due for a replacement. My question is whether I should get a replacement battery back for the UPS I already have or replace the UPS entirely. The UPS may be almost 10 years old, but it seems to be working fine - the past few blackouts/brownouts we've had it transfers power over the battery normally, but it's also since been discontinued by Middle Atlantic (or technically Legrand, I guess). The model that Middle Atlantic released to replaced this one is astoundingly expensive, so I was looking at models from APC and CyberPower that have the same power ratings but are much cheaper, but then I got worried that there was some reason our installer/ETC spec'd the Middle Atlantic UPS. Maybe I'm overthinking it, but I still wanted to get some second opinions. TIA!