Feldspar is a APC Smart UPS 1500 mounted in Rack 5.
Uses four 12V 9Ah batteries (F2 terminals). The batteries were last replaced on 2015-02-14 by stroucki; they should last through early 2018.
This UPS was complaining about input voltage and running down the batteries, so it is now plugged into a voltage-regulating autotransformer (AR-1215).
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