If your EATON UPS plays dead, refuses to turn on, without even giving you a single beep... chances are you need to replace the batteries. Here's how to replace the batteries on an older Eaton Ellipse UPS.
Symptoms I had on my Eaton Ellipse ECO: UPS not turn on any more, from one day to the next, pressing the (single) power button does nothing, not a single beep. The green surge protection indicator led lights up, but nothing else happens. It feels like a software bug... (but it will turn out to be a fixable hardware issue).
