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Re: Low amp probe parasitic draw info?
Posted to Tool & Equipment Forum on 8/8/2012 1 Reply

Here's a GM Techlink article with some tips:


I've been taught that maximum parasitic current in milliamps should not exceed 1/4 of the factory battery reserve capacity number as a "rule of thumb".

If the vehicle was factory-equipped with a 100-minute RC battery, then the max parasitic current should not exceed 25mA after all modules have powered down and gone to sleep.

Dave Hobbs has a good article on parasitic drain here:


Joe Glassford's chart for measuring parasitic drain via fuse voltage drop is here:


Michael Joachim
Mike Joachim
Pelham, Alabama, USA

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