Quick way to test a capacitor!!

Be careful and discharge the capacitor before testing. Make sure you leave the probes on for several seconds until it stops.

Thanks for watching!!!!

[brucemuller]

Use your voltmeter to discharge the capacitor, other wise you could damage the capacitor

[PopTarts]

I've never seen an insulated screwdriver without insulation.

[Sorts]

You also need to check it’s ESR as this can be way off even if it’s capacity is good.

[NickP]

I’m not saying this to be argumentative, but please no one use this method. Shorting out the positive and negative sides of an electrolytic cap through the use of a screw driver is a bad idea. It can greatly reduce the life of the capacitor, not to mention, it can be dangerous. Electrolytics can hold lethal charges long after being powered off.

Easy to build, a proper capacitor voltage discharge tool uses an approximately 100R resistor to do it properly. The resistor will slowly bleed off the voltage. There’s plenty of info out there regarding how to make one like on Blueglow Electronics. After discharging the capacitor correctly, the voltage needs to be measured again using a multimeter.
Good luck 😊⚡️⚡️⚡️🎶

[markkennard]

Big brother is watching. Yesterday i was called to a swimming pool heatpump that had a failed start cap. I had to make several calls to find a replacement and today i get this video pop up. Coincidence? I dont think so.

[drturbo]

What digital multimeter do you have? Brand and model number? I'm trying to find one that is cheap that can measure capacitance of a capacitor

[FREEDOM-vu]

Never short capacitor use resistor to short

[tiasuzelac]

No. Don't short a capacitor, use a resistor or something. You also forgot to check its ESR. Also one small mistake, you said "you have to know your uF value", simply say its value.

[johnfowler]

Leave capacitor mounted, Remove connectors, then discharge capacitor preferably with a 100ohm/5watt resistor.
DO NOT HANDLE CAPACITOR UNLESS IT IS DISCHARGED FIRST

[ambassadorkees]

This will not show whether it works at voltage.

[DiAngeloTheSecond]

Brilliant. Quick way to test a capacitor....use a capacitance meter. Where would we be without yt?

[mrdanger]

And After it is discharged connect a wire between terminals to keep a charge from gathering

[joemtnman]

Hey, how are you. Love it. Took a cap, charged it off 220 so 110ish. Told my friend, if his son didnt stop stealing my change im gonna fix him. Center console wired. Change everywhere. Id left it like that so long i kinda forgot about it. Dont touch that change and ground at same time. 😅

[lexusgor]

You need to test ESR, leakage as well.

[shelbyroderfeld]

To discharge a capacitor, toss it to a buddy. 😁


That was a joke, dont do that! Payback can be hazardous!

[ajazahmad]

Sir, my multimeter does not give F option, then how to check?

[TradeGod]

Ok insulated screw driver ... good to know

[ronjones]

All in all, a multimeter by its self is not a very useful tool to check a capacitor and when used with a power supply only gives you a little information, mostly it cant tell you if it is good, but it can tell you if the cap is bad.

[peteaceves]

I don’t have a microfarad setting on my
Meter? Will I still be able to test capacitors?

[TheRealMake-Make]

Do NOT discharge a capacitor this way, folks. That could get you maimed or killed. Discharge one lead at a time through a ground wire. Even then, use caution.