How to check for current draw we are going to be learning how to perform a Parasitic Current Draw test or PID. Knowing the right way to do this test may not be vital, but it will save you a lot of headaches. Doing this test wrong can waste time, and that will waste money. You also don’t NEED a ton of high dollar special equipment to do this. While that equipment is nice to have, most of use don’t have it. So if you have a battery draw, here is the best way to help find it.

Become A CrewMember If you like this show. If you get value out of the videos and content that I put out, consider supporting the show by becoming a CrewMember. You will get discounts you can’t get anywhere else, exclusive videos from me, and VW/Audi training manuals. Between the discounts and the training manuals, the CrewMembership can easily pay for itself. Become a CrewMember today

Help Support The Show Many of you have asked about supporting the show. For that I thank you. For now, the best things you can do are SHARE THE SHOW, and shop with my links on Amazon. You will not spend any more money that you would normally. Here is the Amazon link ~ Humble Mechanic on Amazon or you can check out some recommended tools I have listed below.

Join me as I take your automotive questions on:

Trouble viewing? Watch “The BEST Way TO Perform a Parasitic Draw Test” on YouTube.

As always I love to hear your thoughts. Please post them in the comments section below. If you have tips or tricks to perform a current draw test, I would love to here those as well. Also if you have an idea for a show you can email me, or use the contact me form!

Don’t forget to follow me at:

4 replies
  1. Darren
    Darren says:

    Hi Mate, love the vids, very informative and easy to understand. i have an Audi Q7 2008 3.0 TDI that is having a battery problem! replaced the genuine battery with an aftermarket battery of the same size and CCA etc. Anyway the battery died again after about 2 months of use. so i got out the volt meter and started to use your tests, and i found nothing abnormal except comminication fuse was .2millivolts and radio/DVD took ages to sleep, everything else seems to be going into sleep mode. the battery volts with engine running was at 13.76v which i thought was a bit low with nothing on, ie no radio no doors open etc.
    So i read that changing a battery also required it to be recoded to the car? and that only genuine batteries should be used? not sure what to do as the dealership just keeps saying they cant find anything either? cheers Daz

    • MrSmithr
      MrSmithr says:

      A little late but if your car requires an AGM battery (I believe for start/stop functions etc..) then you will need the battery coding to the car. Judging by the voltage test with the engine running does sound like a potentially faulty alternator.


Trackbacks & Pingbacks

  1. […] post The BEST Way TO Perform a Parasitic Draw Test appeared first on Humble […]

  2. […] post The BEST Way TO Perform a Parasitic Draw Test appeared first on Humble […]

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply to The BEST Way TO Perform a Parasitic Draw Test | Automotive Knowledge Hub Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.