Excerpt: This is the second backup I have purchased in the past 5 years. I had a difficult time getting plugs into 2 of the outlets. I was thinking that I might get shocked but they were just very tight.
Excerpt: I have poor electric service(A. Power) with very frequent microsecond power interruptions that has ruined alot of equipment and hours of mycomputer work, so a battery back-up is necessary but I didn't know it needs a $39.99 replacement battery after a few years.
Summary: I like that the new unit consumes less energy and I also like that APC traded up my old unit, however, I started to get an annoying squeal out of my speakers after plugging my computer equipment into the new UPS. Online support suggested that I get a ferrite bead for my equipment.