T0yman wrote:
Might try a couple local battery places for a replacement battery. I have found them once in a while to be 1/3 the cost of a new UPS.
It's $75 for the batteries to fix it. Not cheap batteries, but not a cheap Backup system either. Served me since about 2003 so I guess I can't complain. I also bought this unit BECAUSE it has replaceable batteries.