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| | | | Joined: Sep 2017 Posts: 73 PA OUTLAW | | PA OUTLAW Joined: Sep 2017 Posts: 73 | Hello all working on 1954 chevy 3100 12 volt . working on the AMP gauge gauge shows slight discharge . But tester says 13.9 volts at battery is it possible I have the 2 wires switched on the back of amp gauge showing slight discharge instead of slight charge . Dose it work that way THANK YOU SO MUCH!!!!!!! | | | | | Joined: Mar 2014 Posts: 4,479 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,479 | That is possible. Disconnect the battery and switch the wires at the ammeter and it should read correctly. AC current doesn't care about polarity on an ammeter, but DC current does.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
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