Car Battery Drains Overnight Or After Days Of No Use! PARASITIC DRAIN
1,472,578
Published 2020-01-23
ATTENTION: The testing methods shown in this video can be performed using either battery terminal(sometimes one end of a car battery can be much harder to get to, or one cable has very limited movement), but it's much safer to use the NEG battery terminal since it's connected to the vehicle's chassis/engine ground.
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All Comments (21)
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ATTENTION: The testing methods shown in this video can be performed using either battery terminal(sometimes one end of a car battery can be much harder to get to, or one cable has very limited movement), but it's much safer to use the NEG battery terminal since it's connected to the vehicle's chassis/engine ground.
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I worked at a car dealership for 15 years (as an aftermarket electronics installer). It always amazed me how many technicians didn't have the slightest clue of how to diagnose a voltage draw. Before some tech gets heated over this comment, the percentage of ignorance, is about the same among aftermarket electronics installers. I'm not meaning to be insulting. The point being, never stop learning, I've learned things from people that were just beginning, and I've taught things to 30-year vets. Our ego only serves to limit what we allow ourselves to take in. Happy wrenching.
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I use a infrared thermometer to check for the hotest fuse in fuse box to locate the short I the circuit..sometimes you can trace the heat on the wires to the voltage drain
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That is a topnotch complete summary and delivery of testing for a parasitic draw. Thanks
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Great video that'll help a lot of people! Thank you for the video and always a thumbs up!
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There you go! You did this vid much better than the older vid! Thanks for sharing. That post clamp probe clamp jumper wire is a clever technique, too!
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This video is the best video I’ve ever watched on YouTube. Perfectly explains each step. Now I feel my life’s nemesis, my wife’s piece of crap 2013 Ford Escape, will lose again.
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This works because at 10amp setting which uses a shunt allowing for current flow...Thanks for this simple comprehensive video
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Done this during my career working on cars. Very well explained for anyone too fully understand. Imho
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thanks so much! easy to follow and it makes sense! Found my issue immediately, after wasting time at the "dealership" shop and with a private garage. Looked to YouTube and found your video, and voila problem solved.
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Only two decades later.... I FINALLY found someone who can not only explain it, but 'explain', what and why this is important... KUDOS!
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WITH SO MANY USELSEE VIDEOS OUT THERE THESE DAYS,,,,,,,,,,IT'S GREAT TO RUN ACROSS ONE THAT REALLY HELPS . THANKS.
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Thank you for this video and detailed explanation that even someone like me, 0 experience, could understand!
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Great video. Probably be better approach to do this test on the negative post versus the positive post.
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Thank you Doug. I use an OBD-ll battery back up port ,has they are supposed to keep the backup memory in the ECM. With all the new crap that are on timers to put them to sleep, it can be a headache to do the tests needed at times. Even opening the door can wake up some circuits. Best way I found was to open the door and fix the switch to fool the car into thinking all the doors are closed and just wait till it goes back to sleep. Liked,Shared. All my best.
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Very detailed and very well demonstrated. Thank you for the content.
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I love your precision...
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Thank you sir. Used this method and found the drain on my battery- a trailer hitch adapter.
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the fact that disconnecting the car battery to do can result in an expensive trip to the dealer speaks much about the sad state of affairs in the car industry ......
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Awesome vid and tricks. Will help me indeed 👌. Tks for sharing
