Finally, someone demonstrates how to measure voltage drop across connections. One of the best ways to pinpoint a problem. Nice job.

Thank you for sharing this information with us, its great to see that there people who try to help others.

One of the the best "How TO" videos I came across. Thank you!

thank you...this is the most informative video on battery testing i have seen in the HOURS of looking I've done for an answer to how you can check the CCA of a battery with plenty of voltage. great job keep it up please :-)

Thank you for making this content - I'm grateful for the knowledge you shared.

Great video! Your instructions are simple and clear. Thanks!

Thanks man! You are the legend! 👍👍👍

Thank you for all the detail info you give straight to the problem🎉

Great presentation .my cheap voltmeter showed 12.6 and did not go below 10 volts when cranking but the car did not start .i took the battery to autozone and it was bad! Good multimeter is the best investment

A weak battery can also overheat an alternator over time as it struggles to keep it charged and you end up having to buy an alternator as well. I would replace a weakened battery immediately.

Your videos are the best. Simply awesome.

keep it up.Thank u for sharing lots of important tips like Multimeter latency , good working terminal etc

Your videos are very well laid out very informative this coming from a professional technical trainer well done keep up the good work 👌🏼

Great video and information, my only suggestion is you should make sure you fully charged your battery before doing a CCA load test. My electronics teacher in high school in the 1980's taught us to use baking soda and water in a jar and soak the battery terminal in it for a few minutes to remove the corrosion before cleaning the terminal with a battery terminal wire brush, and he also said Vaseline Petroleum Jelly can be used to cat the terminals and help prevent corrosion, I have used it for decades, and never have corrosion issue's. I also use a Pulse Tech battery desulfator / Maintainer on my battery to reduce battery cell sulfation, the claim the patented frequency can desulfate batteries, and is used by the U.S Military on their vehicles.

Very informative video. Very easy to understand.

You make great videos. Thanks for sharing.

@JunkyDIYguy

6 жыл бұрын

you're welcome

Fantastic and so easy to follow

Very insightful video, thank you.

Fantastic, informative video. Thanks

Amazing video, thanks!!

Very well explained...useful information👍🏻

Great video mate

Excellent video!

Great video, thanks man

Best video on car batteries Thanks

Great video. Thanks

Very good and profesional . Thanks!👏👏👏

Fantastic video, well done

Very good battery info!

Good very thorough video. And we should disconnect negative first and vice versa

I love dhis channel help me a lot

Fantastic video I’ve certainly learnt a lot. Thank you so much for sharing your video one question I do have when you’re testing the cold cranking amps do you have to start the engine? Thanks

You're awesome bro! 😎👍

Top video, well done.

Good video I liked the details of like if you get 1 click then nothing it's probably a connection and the voltage drop at the terminals

Great insight. Very informative mate! Cheers!

Great video! If you just installed a bnew battery (1 or 2 days old), what should its readings (range) in the voltmeter be normally?

thanks alot you were helpfull

hello i have the same meter as you the 87V but when i try and use the min/max function when measuring the DC voltage it just overloads..... any ideas?

101>909 Car Battery testing Comments say it all......Gold Standard, best on Net, content & communication

Nice sort and to the point video :) , i am at the point of buying a CCA tester i just seem to have bad luck with batteries. Although i have found that things like SCA and similar generic batteries seem to not last as long as big name batteries like Century or Excide or will die quickly if you are pulling a high draw on start-up in utes etc. What really gets me is places that want to keep your battery to charge and re-test, even when just failed the test's...should be like other things just replace it and sorry but its up-to the business to deal with battery company not you

Good video.

Great vid wow

I set commercial electric analog multimeter to 50 to test 12 V car battery and it read a lil over 10 close to 12 . Is that right ? I've also a slow charger at 1.5 amp slow charge . I cranked it soo much yesterday trying to get car started but nada . I had it towed . How long will this take ? I want to be able to crank car engine to work / test on car today

Great Video thanks

@JunkyDIYguy

5 жыл бұрын

thanks man

you deserve move views my firend !

Thanks!

Such great videos to bad he hasn't posted for some time.

Thank you for the great video. I have installed a new stereo and now my car cranks a lot before starting. I am assuming I must buy a battery with higher CCA. But I don't know how many amps. How can I discover this new value?

Thank you..

How fo i check my 2000 Pontiac_ sunfire srlrctroc window motor is eorkin

Thanks for making this video. Must have taken you ages. Who else is here from covid-19 lockdown wondering how your car batttery will fair standing unused for long periods?

THANKS

Thank you buddy

Many thanks

Bravo ! Excellent explication. Thanks

Thank you

hi great video. how is my best way to load test a 36 volts lithium battery 10.4 ah

Does it matter where the red and black lead are connected on multimeter?because I've seen the black connected to COMMON

what is the name of obd2 self - diagnostics to mobile phone ? Thank you 🙂

So my battery reads 12.66DC but sometimes struggles to turn on. It's a 2006 camry. Could it be the switch?

Thank You for such a great informitive video

Why not have a Fluke 86 or 88? Just wondering... great video!

small DVM leads are reversed on meter end showing readings as negative....

Your videos are very informative, but please do something about the music. It's a iit too loud making it difficult to hear and understand you.

@JunkyDIYguy

5 жыл бұрын

New videos doesn't have any music now

We on lockdown and im going through this at present. Car battery is dead! wont even unlock the car. Battery is only 2 years old. I dont have a charger so will have to source one first.

Thanks for the info, but I noticed a problem at 1:46 in the video. Is it just me, or isnt the voltmeter hooked up incorrectly? You have the positive and negative terminals on the voltmeter reversed, which is why the reading is negative 12 v. Even though Australia drives on the left side of the road, I think red is still positive for you guys, right? LOL. But seriously, thanks for the info and your time in creating this.

@g0fvt

2 ай бұрын

You are right, he has the leads reversed at the meter.

Battery made in Australia, can't get any better than that, but then I'm an Aussie !!

Thx

before to top up with distilled water must mesure acid density, it is a must,you can refill with acid 1.28 maximum density.

Nice. My battery reads 12.85 volts with the engine off. With the engine running it reads 13.80. These are good numbers to have.

How many amps does a battery have when it says 710CCA?

Really informative video, but you didn't really measure the cold cranking amps

Where do you live!? Can you be my new mechanic? lol

funny I'm in New Zealand and recharging a battery from my fathers mobile home , that I imported from Australia the address Cobolt st Carole Park is exactly the same as the one I have , hahahaha.

Cool

Turn the lights for at least 30 sec. Close it before measuring ?? Or leave it on while measuring ??

@delsingh5897

5 жыл бұрын

Close the lights

What is the minimum acceptable cranking voltage ? Eg if voltage drops from 12.4 to 10.18 v during cranking, then does this mean the battery is weak. My battery is 5 years old, so I guess 10.18v cranking voltage means it needs replacing ? It’s a 2 litre diesel Toyota. Thanks.

@404notfound.....

2 жыл бұрын

If it drops below 9.6 V when cranking, the battery has to be replaced.

@unityforall-md4fl

15 күн бұрын

​​@@404notfound.....He showed the more expensive electric voltmeter shows micro secdrop of voltage around 8,that needs replacement. But later the OBD II blue driver live data shows crank voltage above 9.6V. The other better tester shows crank voltage below required in Watts. I guess,safer to just replace the battery😂

can u make a video u saying battery like 1000 time.

Nice1..Junky & thank u

I thought battery had to stay above 10v during cranking?

Issue is with the car running the battery voltage jumps around wildly from 14v to 9v to 2V to 12V etc.. while running idle. any guesses?

@Izzyfoshizzy710

2 жыл бұрын

Weak connections

@steso8979

2 жыл бұрын

@@Izzyfoshizzy710 thx for input, but no. battery died when it got colder outside! 6 year old one :D

What's up with the hand animation?

Do not use baking soda to neutralise an acid burn! This may exacerbate the injury! Just run under plenty water to dilute.

I've had the same battery since new & its charge was 12.42 volts when I bought it new in 2016,its gravity has always been in the fair range (white) since brand new,its CCA rating is 420. AFAIK when the battery gravity is down in the red area,it either needs to be recharged or possibly replaced. I did this test to GM specifications which is at about 70°F (21°C) temperature with a fully charged battery :- 1. Disable the fuel & ignition systems 2. Connect the multimeter terminals to the battery terminals. 3. Operate the starter motor for no longer than 15 seconds 4. Observe the voltage which shouldn't reach below 9.6 volts,mine didn't reach below 10.3 volts during the time that I was cranking the engine over,so it must be o.k. I did try the minimum voltage setting on my multimeter & it got down to 9.2 volts when starting the engine but that was with a 12.26 voltage (half charged), apparently between the 9-10 volt range indicates that the battery is still o.k.

wow so much to buy, yet better off just checking the volts with cheap multi meter and make sure its a sealed battery, with green or view window to show the condition of the battery, forget the rest, but also if the car does not start and the battery is good, then sometime disconnecting the battery and depressing the brake ,will re set the computer and any excess charge in the cars electrical system?

What if the battery reads -12.40

Like !

I got 7.90 v while cranking thats way to low but battery is 25% and it did not even start

👍👍👍👍

When I start my car it's a slow crank? Is it my battery or alternator or my starter is going bad I'm trying to figure it out

@JunkyDIYguy

4 жыл бұрын

sounds like a weak battery, take you car to an auto parts store and have them do a battery and an alternator health check for free,

@Joeelectronicschematicsforauto

3 жыл бұрын

It can also be the alternator is bad if you crank the car a lot then your battery will be drained number one number two if your alternator is going bad it will not charge the battery so it will look like your battery is bad but it's the alternator number three it depends if the battery is top post or side post so you can measure the voltage drop across the terminals

Great video mate , i measured 12.4v overnight, and after 3 days 12.2v , starts fine. Running voltage is between 14.2 - 14.v. Is this normal for a battery? Battery was replaced in August 21 , with a larger 480cca. Cheers.

@SimplifiedTruth

Жыл бұрын

Mine is doing the same. How did your battery hold up?

@DECKARD263354BR

Жыл бұрын

@SimplifiedTruth I ended up buying a CTEK charger and used a recon mode and it has made a massive improvement on battery life, starts are great 👍

@SimplifiedTruth

Жыл бұрын

@@DECKARD263354BR Awesome. Recon mode? That's a mode of the charger Or vehicle?

@DECKARD263354BR

Жыл бұрын

@SimplifiedTruth It is a reconditioning cycle, because one day I left my map light on and it drianed the battery, it never got to full voltage until i bought the charger and charged it full cycle, brought it up back to voltage like new. Such great chargers the CTEK, some prestige car manufacturers provide them with the cars purchase 👍

How am I supposed to see what the voltmeter shows while I'm turning the key? The voltmeter will be under the hood and not visible to me.

@Springfield1225

4 ай бұрын

Two man operation.

Junky what app are you using to view control module voltage?

@JunkyDIYguy

Жыл бұрын

it's the app for my scan tool call "blue driver"

@andrewleonard9257

Жыл бұрын

@@JunkyDIYguy Thanks. I have a Veepeak scan tool. I can get a live graph of OBD2 voltage but can't see a way of reading the min and max values. Min after starting engine looks about 9.6v. Battery was charged yesterday to 13v.

It seemed like it would be a good video but hard to understand and too fast. Thanks for doing it though!

@richrossi5646

5 жыл бұрын

I agree. Talk SLOWER and we all can understand better. Thank you

@lazyman2451

4 жыл бұрын

That why there a turn on subtitles feature

Can't the clicking also mean the starter is starting to go bad?

@404notfound.....

2 жыл бұрын

Yup!

Hey, actually, I bet you know the minimum mahs in a power bank I need for my truck. I keep looking at them casually. Its a 5.7 gas. Also, I'm in Canada, working at -25'C -15'C would be nice.

How to tell if door's power window motor still works

@JunkyDIYguy

2 жыл бұрын

check the fuse and relay for window motor, if they're good then you can remove the door panel and unplug the connector for window motor. use a test light to see if you getiing power to the motor when as press the switch. manually supply power to the motor as well to if it works

your leads are in the wrong socket on the meter.. its showing negative volts

Next video.........how to wrap.