There are lots of questions about uninterruptible power supplies that are improperly tagged as apc (Alternate PHP Cache)

Here is a sampling but there are more.

• Mix and Match Avocent IPKVM with APC Server Module?

• Is this an NEMA L6-30R Plug?

• APC Smart UPS network shutdown issue

• Graceful Shutdown of Ubuntu Machine with APC UPS - Network to USB Cable

• How to clear the REPLACEBATT state from APC UPS after hot-swapping the battery

I'm suggesting a new tag php-apc then do a merge and create another new tag apc-ups