Bad Battery? Bad Alternator? Or Parasitic Drain? Let's Find Out! -Jonny DIY

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Car Won't Start or Battery Keeps Draining? Battery, Alternator & Parsitic Drain Test. As well as How To Properly Charge your Car Battery.
TOOLS & SUPPLIES & DONATION LINKS
Battery & Alternator Tester TOPDON BT100- amzn.to/3odApq7
10% COUPON- MICHCIWM IF PROBLEM, LET KNOW WILL TRY GET NEW 1
Battery Charger- amzn.to/3uj87LV
Multimeter- amzn.to/3icLKD2
Alligator Clips for Multimeter- amzn.to/2WlPCtM
Tool Set- amzn.to/3epVN4X
Safety Glasses- amzn.to/2ez41Jw
Magnetic Work Light- amzn.to/33tk6tp
If you Enjoy the Channel Consider Helping Support it by Donating below & by Subscribing.
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Zelle Donation JonnyDIYs@gmail.com
Venmo Donation JonnyDIYs@gmail.com
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Опубликовано:

26 сен 2024

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Комментарии : 182

@JonnyDIY 3 года назад

*TOOLS & SUPPLIES & DONATION LINKS* Battery & Alternator Tester TOPDON BT100- amzn.to/3odApq7 10% COUPON- MICHCIWM IF PROBLEM, LET KNOW WILL TRY GET NEW 1 Battery Charger- amzn.to/3uj87LV Multimeter- amzn.to/3icLKD2 Alligator Clips for Multimeter- amzn.to/2WlPCtM Tool Set- amzn.to/3epVN4X Safety Glasses- amzn.to/2ez41Jw Magnetic Work Light- amzn.to/33tk6tp *If you Enjoy the Channel Consider Helping Support it by Donating below & by Subscribing.* *PAYPAL DONATION* www.paypal.me/JonnyDIY *Zelle Donation* JonnyDIYs@gmail.com *Venmo Donation* JonnyDIYs@gmail.com Thank You for watching, Subscribe & Click BELL Icon To Enable Notifications for NEW Upcoming Videos, Give a Thumbs up, Leave a Comment or Question, & Share, I'd appreciate it tremendously! :) Remember to Keep on, Doin it Yourself!

@Eazykilldavis 4 месяца назад

If you are checking fuses inside, place your meter face down on your windshield. So you can see it and not have to get out to look

@derrickforeal 6 месяцев назад

Wow your model hand movements are in point. Another slightly man adopting the younger generations style.

@JonnyDIY 6 месяцев назад

Thank you 👍

@SaltySilverStacker 3 месяца назад

Everstart batteries are usually die right on with their warranty. I’ve been fortunate to have had mine die a few months before the warranty. I just take it to Walmart for free replacement. I’m on my 3rd battery without paying for one in 8 years.

@JonnyDIY 3 месяца назад

Wow nice! Yeah last time I got one there they said they're getting them from a different supplier now and the guy said they're even worse now! 😂🤦‍♂️ but whatever, I'll wait til bad then go back to Autozone batteries. Autozone will match the walmart battery price so it's not bad and they seem to last pretty well in my experiences

@SaltySilverStacker 3 месяца назад

@@JonnyDIY thanks for the information!

@markdudley5656 Год назад

With bad diodes, an alternator can drain a battery with the engine shut off, too. Even if it charges with the right voltage while it’s running.

@LoganJohnson-s1n 9 месяцев назад

What are diodes

@Tiger-cy3fv 9 месяцев назад

@@LoganJohnson-s1n I think he is takinkg about Idle issue, (I think typo error)

@8216. 9 месяцев назад

My alternator was charging while engine was running, but when shut off it draining about 1.5 amps, I tried to take it apart and only change the electronic parts but could not take it apart, so I brought ine from Junkyard, and it work fine, only drawing .005 of amps when engine shut off which is normal.

@dev-debug 6 месяцев назад

@@LoganJohnson-s1n An alternator creates AC voltage so diodes are used in a bridge rectifier configuration to convert the AC to DC output. A diode when working properly only passes current in one direction. If even just one shorts in the alternator your battery will drain because the battery will be energizing a coil in the alternator causing. There are a minium of 4 diodes in an alternator, some may have 6. They are easy to test using an ohm meter.

@Sayso510 Месяц назад

What are diodes

@surf6009 2 месяца назад

I like the red/green felt gaskets. I've been using them since the 70s!

@JonnyDIY 2 месяца назад

@@surf6009 yes they work great for helping keep battery acid in check 👍

@larrycroft470 3 года назад

Jonny so glad to see your channel has exploded with subs in the past year or 2!!! You always have such interesting videos brother!!! It has been quite a while since i commented so congratulations on your success!!

@JonnyDIY 3 года назад

Thanks so much Larry! I've shot a lot of videos recently & I'm still trying to go through & edit them all.

@MainADMlN 4 месяца назад

I'd just go head and cough up 50 bucks for a battery/alternator/starter tester. That's a great tool.

@JonnyDIY 4 месяца назад

Yeah I love that little one I got from Topdon, I've used it a lot since making this video on some friends cars

@cdcVintage 3 года назад

I fixed my dishwasher last week. Wasn't powering on due to a bad toggle switch on the latch. I replaced one of the switches 12 years ago. Finally the other failed. Easy peasy!

@JonnyDIY 3 года назад

Awesome, always love it when it things turn out to be an easy fix. So many people throw things out that may just need a lil bit of tlc to fix and get it going again 👍

@DJV94022 11 месяцев назад

Next time dont call an a/c man you can do it too

@danielw8944 14 дней назад

Amazing vid bro thxu 4 the info!! 😎

@JonnyDIY 14 дней назад

@@danielw8944 You're welcome! Glad I could help you out 👍

@c.l.mcintosh624 11 дней назад

Thank you for your video

@JonnyDIY 11 дней назад

@@c.l.mcintosh624 You're welcome, happy to share 🙌👍

@curtthompson2787 9 месяцев назад

12.2 - 12.3 is not bad and I've had new batteries around that. Its fine. Also, battery drain from sitting on the floor is a myth, especially for that short of time. How are you going to lose charge through a plastic case?

@JonnyDIY 9 месяцев назад

I think I ended up replacing that battery as it wouldnt hold a charge for very long. New one works fine. Yeah thats an old myth from way back when batteries used to have wooden cases. My Daddy taught me not to put on concrete and one of those things I cant forget 🤣🤦‍♂️ he mustve learned from his father who was a race car driver & mechanic and passed to me

@dinhhoangtu311 10 месяцев назад

Good video. Informative and helpful. Thanks!

@JonnyDIY 10 месяцев назад

You're very welcome, happy to help. And thank you! 🙌👍

@zbigniewrichard8291 День назад

So what was the culprit for draining your battery? Because you didn't show us in this video.

@JonnyDIY День назад

@@zbigniewrichard8291 It was a combination of the factory alarm system and only driving it periodically. Also a bad battery. I replaced battery and disconnected alarm and haven't had an issue since 👍

@NewLife4GVN 10 месяцев назад

That hand in your car freaked me out. 😂

@JonnyDIY 10 месяцев назад

🤣 lol had a friend get in my truck a few months back and jumped out of his skin when he saw it 😆💕👍

@brucechavis5305 8 месяцев назад

The battery on the concrete is a old myth from the wooden batteries. New batteries in a plastic case will not drain on the ground or on concrete…. I learned that at UTI

@JonnyDIY 8 месяцев назад

Thanks for sharing. Yes my Dad taught me that and he'd probably learned from his Dad when they were actually wooden. I'll let him know we don't have to do that anymore 😆👍

@anthonytrodriguez7166 Год назад

Nicely explained and step by steps thx

@JonnyDIY Год назад

You're welcome, happy to help 👍

@robertwarrenburg2971 Год назад

Thanks! Good info and commentary, helped me out!🤠👍

@JonnyDIY Год назад

You're very welcome, happy I could help! 👍

@vhg8638 2 месяца назад

awesome explanation

@JonnyDIY 2 месяца назад

@@vhg8638 thank you, happy to help 🙌👍

@Olds_Pwr 9 месяцев назад

Please explain how that plastic case battery will discharge through concrete when charging it.

@JonnyDIY 9 месяцев назад

Lol it won't unless case was damaged. It's just an old habit from days of old when batteries used to drain from case

@Powerhouse_Racing 7 месяцев назад

I was thinking the same thing, it is a complete misconception. This was from back in the days when batteries were made of wood or hard plastic, the wood would absorb moisture from the concrete and the hard plastic cases would crack when exposed to moisture from the concrete. The new polycarbonate battery cases would never be affected. Plus discharging through the concrete is ridiculous. 😂

@JonnyDIY 7 месяцев назад

@@Powerhouse_Racing yup it's from days of old, old habits die hard as they say 😆

@boognish593 2 месяца назад

It’s from the old days, but I still don’t let them sit on the concrete because I don’t want acid leaking out and eating up my floor.

@vhg8638 2 месяца назад

You working with that Harbor Freight Multimeter. When you dont know what you're doing, youll burn it like me.

@vhg8638 2 месяца назад

ok just saw how you had a major misread using that. not a huge deal but still..

@JonnyDIY 2 месяца назад

@@vhg8638 yeah I need to get a better multimeter for sure! Maybe a Fluke or Greenlee. This one worked in a pinch though and it's what I had

@zahariastoianovici8590 5 месяцев назад

Very helpful, thank you

@JonnyDIY 5 месяцев назад

You're welcome, happy I could help you out 🙌👍

@mintorb1 Месяц назад

Good luck finding the 10mm

@JonnyDIY Месяц назад

@@mintorb1 🤣 gotta have a couple backups for sure

@katea4636 Год назад

Exactly what I needed to investigate a parasitic draw on my battery, thank you! But what I REALLY need to know now that I've watched, is where you got the "hand" in your console!!? That thing is AWESOME, and it's (oddly 🙂) not included in your links! I need one! Thanks....

@JonnyDIY Год назад

You're welcome, happy I could help. Lol that 🖐 hand is a old halloween prop I've had in my different car for yearrrs. I always put it coming out of the dash somewhere. It's startled a lot of people 😆 looks like I found a very similar one amzn.to/3QzfqMI

@katea4636 Год назад

@@JonnyDIY excellent, thank you! (I thought it was a true cord holder, and all I was finding were the tiny little "clutching" variety). Love this! Have a great day!

@JonnyDIY Год назад

@@katea4636you're very welcome 👍

@tinaoakley233 10 месяцев назад

Why not charge while battery is in jeep?

@Lumi7-7 2 месяца назад

Very good video.

@JonnyDIY 2 месяца назад

@@Lumi7-7 Thank you! 🙌 Happy to help 👍

@markcodysr 3 месяца назад

Taking that battery out really winded you Bro!

@JonnyDIY 3 месяца назад

🤣 that sucker's heavy and since in high truck was a workout for me while holding camera lol 🚫💪

@alfonsogobaleza7968 7 месяцев назад

Nice video. Question how do you recharge the battery of 2016 dodge journey without taking it off.

@JonnyDIY 7 месяцев назад

You can charge battery in vehicle, just do the same as I showed with battery charger. Red to positive and black to negative and double check settings if there are on your charger then plug in 👍 you dont need to disconnect any cables either just connect right to battery posts/terminals

@gerardsagliocca6292 4 месяца назад

Can u use a Clamp meter to measure current draw on negative cable ?

@JonnyDIY 4 месяца назад

Yes a 12v clamp meter will work too. I only had a 110v one on hand. I should have mentioned though 👍

@Truthfulfisherman Месяц назад

How low will it show if you have air conditioner in and lights?

@JonnyDIY Месяц назад

@@Truthfulfisherman it shouldnt drop too low, should still be above 13 volte

@hawaiiislandsbhproduction1774 Месяц назад

2006 Equinox parasitic battery draw 1 amp please advise thanks

@JonnyDIY Месяц назад

@@hawaiiislandsbhproduction1774 i would start by pulling fuses 1 by 1 and see when the draw drops and go from there 🤞

@trendypackz3734 8 месяцев назад

Why it first look like someone was laying on the floor holding your charger 😂

@JonnyDIY 8 месяцев назад

Lol was probably me 🤣

@2Jeezuzisreal 2 года назад

Sucks. My 05 Yukon parasitic draw wasting my time I've had numerous electrical problems with Chevy vans. Wasted a whole day going to the junkyard to get a used radio because my old one was set at 12:00 every morning I thought that was it. Then I heard that it would be the ignition switch but that wasn't it.

@JonnyDIY 2 года назад

Electrical can be the biggest nightmare sometimes

@hkiriaymen3596 2 месяца назад

hello when i put the multimetre at first it gives me 0.5A but after 2 min it deacreses to 0.02A is this something normal ?

@JonnyDIY 2 месяца назад

@@hkiriaymen3596 yes that sounds normal, it usually settles down. Just check draw after car been sitting a while 👍

@coreybailey4173 11 месяцев назад

I have a 1992 S10 pickup truck with a 355 V8 and turbo 350 transmission behind it from a 1985 C10 pickup truck when I turn my blower motor on high for the heat it drains bad and I think it's a resistor because it only has high speed the other speeds can that drain the battery while you're going down the road the alternators brand new to the truck it's a custom so it's a little bit bigger than normal amperage it's a 160 amps and the battery is 3 years old with 800 cold cranking amps and 1000 hot cranking amps let me know what you think I appreciate it

@JonnyDIY 11 месяцев назад

Yes it sounds like the resistor as you suspected. I would start there. Hopefully it's just that 🤞👍

@iosonoi.7132 3 месяца назад

Here’s my dumb question can you use any voltage tool for this? I got $20 one from Home Depot to check my dishwasher a couple months back. Could I use that or are there special considerations while doing this on a car that require me to a better/specific tool?

@JonnyDIY 3 месяца назад

It should work as long as it has a volts setting 👍

@boognish593 2 месяца назад

Get a decent dmm. Greenlee dm820 is a nice meter for under $200. You’ll get a lot of capability out of a good meter like… min/max record, diode testing, capacitor testing, much better stability and resolution/accuracy, frequency testing, auto ranging, way better response time, faster continuity indicators, relative/ 0 function, amperage readings (up to 10 amps on most),etc….. it’s a good investment. The cheap meters I toss in an emergency tool kit and use for side of the road emergency troubleshooting to do simple voltage and continuity checks only.

@ezyjack826 9 месяцев назад

have to replace the bolt on my battery terminal. what kind of bolt should I use?

@JonnyDIY 9 месяцев назад

Any steel bolt will do, but I usually just pick up specific battery terminal bolts at local auto or hardware store 👍

@kallachnadra 7 месяцев назад

Can't you check voltage at cigarette lighter to give you alternator voltage ?

@JonnyDIY 7 месяцев назад

Yes they sell little ones you plug into lighter socket like this 👍 amzn.to/49fCKp5

@kallachnadra 7 месяцев назад

@@JonnyDIY yes..i use that

@chidiobasi7898 7 месяцев назад

Can I ask questions

@silverechohawk5315 Месяц назад

Damn. People who say ‘go ahead and…”. What an annoying waste of time!

@JonnyDIY Месяц назад

@@silverechohawk5315 Thanks for watching 🙌👍 Happy I could help

@trejones5965 Месяц назад

Can’t your starter drain your battery to?

@JonnyDIY Месяц назад

@@trejones5965 yes a malfunctioning starter and even an alternator can drain your battery. It should show up when you test for parasitic drain though 👍

@clintonscholtz8182 2 года назад

A multi meter has a % accuracy ready %5 %3 -%3... that's why you get a different reading. You add say 5% if your ones book days its 5%

@princeerick11 8 месяцев назад

Take Me For A Ride

@Tiger-cy3fv 9 месяцев назад

without start car Battery voltage 12V, after start car battery voltage 13,, just add new battery then idle issue and now car parts guy told me charging system fail, some one told me idle issue make this problem (not to chare battery and no battery ligh at all so still consider alternator?) please advice. appriciate your help

@JonnyDIY 9 месяцев назад

Your battery voltage should be running 13.5 to 15v with engine running. If not I would check alternator 1st 👍

@dons1264 7 месяцев назад

Good video, but couldn’t you have just found the draw?

@adolg4049 3 месяца назад

Why my multimetter read 1 when i put at 20v and at 200v read fine

@JonnyDIY 3 месяца назад

Make sure leads plugged into right terminals maybe 🤔

@boognish593 2 месяца назад

Depends on your meters resolution… you may have to use the higher scale with cheaper meters that have fewer counts

@chidiobasi7898 7 месяцев назад

Nice one boss

@JonnyDIY 7 месяцев назад

Thanks 🙌

@danschenck9442 Год назад

why not just disconnect the negative terminal,, then check fuses to se which one has power going to it,,, find that fuse ,,there is parasictic drain problem

@JonnyDIY Год назад

Yes you can use a test light to check fuses for any power

@blairwilson9272 Месяц назад

i think that would only be helpful if the parasitic draw is caused by a bad ground

@derrijl 2 месяца назад

Very very good video....❤❤❤❤❤❤😂😂😂😂

@JonnyDIY 2 месяца назад

@@derrijl thank you! 🙌👍

@gunwrites6222 7 месяцев назад

Do yourself a lifetime favor, buy a good Fluke meter.

@JonnyDIY 7 месяцев назад

😆 yes I need one for sure! Thank you. I've been borrowing my neighbors now, he's an electrician.

@boognish593 2 месяца назад

@@JonnyDIYgreenlee (rebranded brymen) makes very nice meters at a great price I have the dm820a model I use at home and use a fluke87 and fluke 787 at work. I wouldn’t hesitate to to use the greenlee at work

@JonnyDIY 2 месяца назад

@@boognish593 awesome thanks will check out! Yes greenlee has always made quality stuff in my experience

@myviews469 Год назад

Town and Country turned still can't get it to charge change battery and alternator twice and alternator just won't charge. I installed voltage regulator kit and still not charging. I can't believe two new alternators could be bad. I can't figure this one out

@JonnyDIY Год назад

Have you tested the voltage output with the new alternators? Still low?

@myviews469 Год назад

@@JonnyDIY are you referring to the two wire connection behind alternator? or the power wire going to charge battery?

@JonnyDIY Год назад

@@myviews469 I would check battery voltage with car running to see if alternator is putting out. If not check voltage leaving alternator to see if something wrong between two

@myviews469 11 месяцев назад

ok so I connected the power from a good fuse to alternator ( field, signal ) wire connection and another one which I use to tap the negative side of battery but only while the meter was connected, and car was running what I got was the voltage of the battery 12.3V even as I touched ground wire from alternator it did not increase voltage. now if the alternator is fried I only had on for seconds and never smelled or hear or saw any smoke or do anything wrong. When I look at the specks of the alternator says voltage regulator is external

@LubaLuba1 11 месяцев назад

What I have red and brown when I take a meter to it to check voltage I zero on one and 12.5 v on other, red field to negative on battery and brown field to positive on battery. I was thinking of attaching voltage regulator kit to is this possible on 2011 Town and Country?

@JonnyDIY 11 месяцев назад

What symptoms are you having?

@LubaLuba1 11 месяцев назад

@@JonnyDIY one day it stalled out and won't turn on, replace battery and it did it again so change alternator and checked it was charging but all I got was battery reading 12.5v. then I pulled field wires connection from alternator and check it with meter and got 12.5v from one of the wires and nothing on the other. Thats where I am now. I really need this car to work, and I appreciate your help.

@StevenNtombela 6 месяцев назад

Please tell me the riyte size of this car

@JonnyDIY 6 месяцев назад

For battery? I think was 27F

@motologist1917 6 месяцев назад

brother i have ford fiesta mk6 1.4 tdci my problem is that whenever i start the car battery warning light comes on the dash but if i fully press the throttle all the way to 5k rpm it starts charging and light goes offf , plz help me to solve this issue . this problem started when i removed the battery

@JonnyDIY 6 месяцев назад

I would start by checking voltage of battery and alternator. Make sure alternator actually putting out the voltage. Then Id put a scan tool on it, sometimes cars can go a lil funny after disconnecting battery. Some local auto stores will scan for free like Oreillys Autozone.

@motologist1917 6 месяцев назад

@@JonnyDIY brother actually i m from india here the mechanics r totally illtrate they dont even know how to use a multimeter , just just know how to replace parts & fetch money

@JonnyDIY 6 месяцев назад

@@motologist1917 Bummer, hope you can get it figured out. I'd start with a multimeter for sure though

@motologist1917 6 месяцев назад

@@JonnyDIY btw voltage is 14.2 while charging when i revvvv

@JonnyDIY 6 месяцев назад

@@motologist1917 that sounds good for alternator. Seems like something in computer may have tripped when changing battery, does it still drive ok? Id drive if so and see if computer just needs to relearn a base line and go through all the system checks

@404notfound..... 7 месяцев назад

Stop! I see the problem already, it's a Walmart never start battery. 😊

@JonnyDIY 7 месяцев назад

😂 I usually get them at Autozone, but I thought they had the same manufacturer. Last time I was at Walmart for a battery though they said they got a new supplier now though. I'll have to check who makes them now. Think used to be Johnson controls now maybe Exide

@overnightdelivery 6 месяцев назад

NeverStart 😅

@danielw8944 14 дней назад

Keep 👋 lol

@glennjohnson8123 8 месяцев назад

you never want to lay a battery on concrete

@JonnyDIY 8 месяцев назад

That's what I was always taught, but apparently now with plastic casing it doesn't matter 🤷‍♂️

@edwardbell3823 5 месяцев назад

Voltage -0.08

@JonnyDIY 5 месяцев назад

Borderline high voltage drop

@Eazykilldavis 4 месяца назад

I think you have a battery problem

@zukewashere1539 Год назад

Too many if's

@1961Marat 5 месяцев назад

too much of a hassle. just go to any auto part shop they will check everything for you for free.

@JonnyDIY 5 месяцев назад

Yes I believe I mentioned that if you don't possess the tools or interest in learning to do yourself 👍 Auto store won't find battery drains though

@boognish593 2 месяца назад

I’ve had them pass bad batteries before

@con2763 17 дней назад

Learn how to do shit yourself bro

@TapelessDrywallFinishing 3 года назад

👍👍👍👍

@deanle604 Месяц назад

sick of the the way you take battery out

@JonnyDIY Месяц назад

@@deanle604 Huh? You don't have to remove if you don't care to 👍

@brianwalker1933 10 месяцев назад

Good video but please stop waving your hand in the video, as its most annoying.

@JonnyDIY 10 месяцев назад

Thank you, happy to help 👍

@zackaboy1236 9 месяцев назад

🤣

@zackaboy1236 9 месяцев назад

Best comment

@urwhytefrightisurproblem8018 9 месяцев назад

Or you can make your own video with stilled hands

@treeroofgrass 8 месяцев назад

like ChrisFix 😂

@malquid3811 2 месяца назад

I spent more time watching your hand rather than absorbing your speech

@JonnyDIY 2 месяца назад

@@malquid3811 Sorrrry 😆

@rogergorden9023 3 месяца назад

Good grief… put your hands in your pockets!

@JonnyDIY 3 месяца назад

🤣💕👍 then the viewers stop watching cause they get bored. Maybe I'll split the difference 😆

@allysonwonderland1992 Месяц назад

Quit whining 😂

@Tiger-cy3fv 9 месяцев назад

to do test $60 battery tester? lol,,, there are 1000s of video to check without tester,, no thank you for your

@gunpowderjesus 2 года назад

this commentary is like nails on a chalk board. try nd cut some dialog....

@JonnyDIY 2 года назад

It's not meant to be a short video. I tried to only leave helpful info covering the multiple possibilities. Hoping one area may help someone.

@surebet146 3 месяца назад

I have a Lexus IS250 2012, have recently experienced starting issues, cannot charge battery in the car, on previous cars, I would just take battery out and charge from indoor power socket. I notice you removed the battery from car to charge, my question is I've heard so many dealership mechanics saying I could screw up the electronics in the car by removing it overnight to charge the battery. Is this just scare tactics on their part or is this correct? Excellent video by the way, well done you.

@JonnyDIY 3 месяца назад

On some newer cars it's better to charge battery without disconnecting from car because of some electronics, I'm not sure if 2012 is a problem. May be worth reading on Facebook groups or forums. I would charge in vehicle if have option. May want to go take it to have battery tested may need replacing