I've got a couple of ~10 year old APC UPS that I have my home rack plugged into. A recent power outage killed the battery on the SMT1000 and while I was waiting for a replacement battery to ship, ...

We have an APC Smart-UPS 1500 battery backup unit. It has switches on it and some other devices. All of a sudden it just powered off completely. Now I don't understand - how is this possible? Isn't it ...