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#48077
ken-hall
Participant

    US Member

    I also use a Merctronic tester in my shop.Recently I began getting "questionable" results.Pulled out the manual.Seens as though when the 7.5 volt battery gets below 6.5 volts,it doesn’t work correctly.The battery was new in 2011.Not sure how long it sat on the shelf prior to my purchase.Anyway,I installed a new battery and it’s back to normal.How long did you perform the power test for?