conceptum mini ups repair - Mr Cable GM-4

This time im looking inside a conceptum mini ups Mr Cable GM-4 to see what's wrong with its 12v output.This device is usefull when there is power outage for some reason and keeps the internet-telephony working until power is restored.
music
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Track: Flexy - Land of Fire [Audio Library Release]
Music provided by Audio Library Plus
Watch: • Flexy - Land of Fire |...
Free Download / Stream: alplus.io/flexy
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Track: Evening Walk - Amine Maxwell [Audio Library Release]
Music provided by Audio Library Plus
Watch: • Evening Walk - Amine M...
Free Download / Stream: alplus.io/even...
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