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.
Rob Berendt
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