Auto Repair : How to Discharge a Capacitor

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Uploaded by on May 12, 2009

Discharging a capacitor means taking safety precautions and dissipating the energy from a capacitor into heat with a 12-volt automotive bulb. Safely dissipate the energy from a capacitor into the form of light with help from an auto mechanic in this free video on auto repair and maintenance.

Expert: J.B. Hebert
Contact: www.wrxtra.com
Bio: J.B. Hebert is a machinist, metal fabricator, and auto mechanic who has been fixing and modifying all things mechanical for over 20 years.
Filmmaker: David Pakman

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Top Comments

  • Light, heat, sound... screwdriver fits the bill

  • Good vid. Educational, clear and short. Thanks, chomsky.

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All Comments (31)

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  • Theres no positive or negative

  • i have a 10000v capaceter and its the size of a big baseball

  • screwdrivers can work, but if you have enough voltage and amperage you may end up with a welded screwdriver.

  • This is extremely useful if you have a brand new capacitor you charged from thin air. I don't know how this is useful for something attached to a board.

  • @DrunkenGolfer HA! Never, EVER have i seen a capacitor explode from shorting the leads. If the plates inside an electrolytic capacitor were to touch, you may have a problem, but the likelihood of that ever happening is extremely minute. Capacitors are designed to discharge quickly. If you wanna fiddle with a silly lightbulb, go right ahead, but i will continue to use my screwdriver.

  • @pixuma absolutely NOT :

    0:25 : "You do not by any means want to accidentally short the positive and the negative sides of the capacitor - it can cause the capacitor to explode, it can also cause arcs or shorts and could also cause electrocutions"

    were you even listening ?

  • lol 100s of microFarads might not even light the bulb for a sec, u dont need a motor or anything else

  • @pixuma loool best comment ever

  • the capacitor is charging it self... :o

  • if its safe to handle now how did he handle it in the first place?

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