When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Amazon is running a one-day sale on APC uninterruptible power supplies and surge protectors with ...

My trusty APC XS 1300 has gone weird on me. I accidentally turned off the switch to the power supply. First thing that wasn't right, it didn't kick into backup power mode. I cycled off/on, but the ...