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  1. Jing 123

    UPS batteries failed to work

    HI, I got a EATON 10KVA UPS and a string of 32 external batteries(13V normal voltage) in operation for 3 years. The other day it lost the input power, the UPS should switch to battery mode and supply the load but it didn't actually. it seems the batteries are empty. I measured the voltage is...

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