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Why does my APC Back-UPS XS 800 keep switching from online to on battery every few minutes/seconds

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

dsidwell_apc
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Why does my APC Back-UPS XS 800 keep switching from online to on battery every few minutes/seconds

This was originally posted on APC forums on 12/22/2013


My APC Back-UPS XS 800 keeps switching from online to on battery every few minutes/seconds. I put a new

battery in it 9 months ago and it just started this a few days ago. It doesn't say replace battery so I don't know

what's wrong with it. I have had it for over 5 years now.  I have several apc units and they are not doing this. So

I assume the electric utility power comming in is OK. Thanks, Dudley