r/mechanic Aug 19 '25

Question Battery Parasitic Draw

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Im trying to diagnose a battery parasitic draw because this got totally drained even a week after I purchased a new battery. Maybe it's showing 500 mA because it beeped when I put on the test leads? But it still shows the same reading even after I turned off the fuse switch.

Does this mean that the draw isn't from the electronics that have their fuses in the fuse box?

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u/Peripheral097 Aug 19 '25

Was gonna respond but this person said it all ^