[ILUG] UPS batteries

[Cian Davis]

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Hi All,
We've had a APC 7.5kVA Smart-UPS running for about 3 years. It runs
about 30% of capacity and has only been run on batteries for more than
a few seconds once or twice.

Question is, when should we replace the batteries? And is there a
better way to measure battery life than turn off the power and see how
long it runs on batteries?

Cian

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