For all those people (my son and electrician friend) who say those battery backups never work right, I'm here to tell them that they indeed do - you just need to make sure you buy a Tripplite. I purchased this backup approximately 3 years ago (but can't find the documentation to support this for sure) and it has run like a champ and performed like expected all that time. The reason I find myself now replacing it is kind of hard to figure out, though. The (same) electrician came to work on our house 2 weeks ago and was "monkeying" with the breakers in the fusebox. My office equipment was being turned on and off rather frequently during his foray through said box, and at one point, the InternetOffice 700 stayed on for about three hours, until it was completely discharged. At that point, the surge/battery backup "side" gave up the ghost. Currently the surge-protector-only "side" still works and my husband's using it downstairs. So all in all, this was a great unit and it had never let me down up to now. I have now purchased a new Eco550UPS and expect the same great service, and will keep a better eye on the electrician and my office equipment next time.
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