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RKP5637

(67,112 posts)
6. It's about 5 years old. The batteries were replaced about a year or so ago. It always passes
Mon Feb 5, 2018, 08:29 PM
Feb 2018

self-test. The only thing I can think of it's something with the frequency of the incoming power usually around 1 AM.

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Latest Discussions»Help & Search»Computer Help and Support»Why would my UPS cycle on...»Reply #6