Does your maintenance cover batteries if they fail? Maybe. However, if
the battery fails during an outage during a critical time how much does
that downtime cost you? Would it be less expensive to just replace the
batteries on your own dime during a scheduled downtime? Does your
maintenance cover a "preventive maintenance" replacement upon a
recommended schedule (like, perhaps every third year) or does it only
cover replacement upon failure?
We have a rack with a large quantity of batteries. When they test down to
a certain level we replace them all. Saving some money to have the UPS
fail at an awkward time is penny wise and pound foolish - IMHO.
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