My Ups (5 year old no warrantly), have an issue When it switch on battery mode, my computer switch off ... So i've tested the outlet with true RMS multimeter and it output 88V (it should be 220V). I've tested the battery wich is 12.7V, it seem's to be good, right? . PowerChute do not tell me about malfunction.
What can be the problem ? Internal Componment ? I've found similar issue but no solution about it.
PS : Sorry for my bad English, i'am french...
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