So I had an unexpected wake up alarm this morning. An unusual constant beeping from downstairs woke me up and for a moment I couldn't figure out what it was, then the penny dropped, I'd run out of credit on the electric meter (I have one of those pesky meters that use a top up key) and the UPS's had kicked in and were now sounding the critical shut
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(Actually I had more UPSs then than now - I found out that the number of UPSs might have been what was causing trips, so UPSing more things to protect against trips was actually being counter-productive!)
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