Thank you for this video. I have an even older version of that charger that I have had on the battery for an hour. I kept watching it and the gauge wasn't moving at all. Mine has no light of any kind. So I tried touching the two clips together like you demonstrated to see if the charger even worked anymore. I finally got them to spark after rubbing some of the rust of the ends of them. Then I did same on the battery...rubbed rust off....and now the gauge is showing that the battery is charging! I just need the car to start one more time so I can drive it to the dealer for a new battery in the AM. Thanks again!

If the charger is not plugged in you can connect in any order; You can connect them both to the same terminal or stick one up each of your nostrils if you like. Nothing will happen. When the charger is plugged in the rules change and you MUST NOT do any of the above.

Hook the Red cable to the positive battery post and the Black cable to the vehicle frame. You'll get better results.

This video may get someone following your instructions seriously injured !!!! I'm sure you received a manual with this charger. You always connect the Positive clamp to the Positive post on the battery FIRST. You then connect the Negative clamp to a ground such as a bolt on the shock tower is mostly standard. Then connect the power and charge. It is also better if you trickle charge it at 2 amps overnight, the battery will receive a steady slow current rather than a jolt of current which may or may not last as long. Connecting Pos to Pos and Neg to Neg can result in an explosion of acid in your face !

Thanks for the details and not skipping over steps. I didn't know whether to remove the charger when trying to start the car. Haven't had to do this before.

Best to charge the battery with the charger set to the lowest amp setting. Charging a bettery at 2 amps is better for it than charging it at 10, 20 or more amps. It will take longer but your battery will recover better.

Thanks.👍 I have a lot to learn about car batteries and how to charge them and everything.

Thanks for the video. You saved me this morning. I have the older modle 2/10/50 AMP but had no idea how to use it to start my car. Got it. SMiles

Thanks for the clear instruction. Good job.

Simple, straightforward and well explained. Thanks for pointing out all the safe ways to handle it. Much appreciated.

Red first, Black last.

Cool, thanks! Car-to-car is old hat but the device settings were a mystery to me until this. 👍

There are some interesting comments to this video. Some good and some not so good. If you happen to be someone who is not sure which are which I offer the following opinion: The maker of this video included the warning label on the back of the charger and my comments are based on that label, specifically warning #2 under RISK OF EXPLOSIVE GAS MIXTURE. First, it is obvious that the charger manufacturer condensed the warning to save space and chose wording which is not specific to a negative ground electrical system, which most cars have. But some (to my knowledge only quite old or antique) cars have positive ground systems. To verify that you have a negative ground system in your car follow the cable that is connected to the negative post on your battery and see that it is connected to the chassis of the car. What follows is my interpretation of Warning #2 on the label shown on the back of the charger in this video as is applicable to a negative ground automotive electrical system (My edits and comments are in parenthesis, otherwise I have attempted to copy the warning word for word): 2. BATTERY LEAD CONNECTIONS - For a battery installed in a vehicle (this indicates that it is okay to use this charger to charge a battery that is installed in a vehicle), first connect the charger output lead (the output lead is the one with power coming from the charger, in this case the positive (typically red)) to the ungrounded (positive, typically red) battery post - (which is) not connected to (the) automobile chassis - in accordance with polarity identification(.) (This is saying FIRST connect red to red.) (A)nd then (connect the) opposite (negative, typically black) polarity lead (of the charger) to the (car) chassis away from (the) battery (so here, you do not connect the black lead of the charger directly to the negative battery post but connect it to the chassis at some remote location so if a spark is generated while making the connection it is not as close to the acid fumes which the battery emits): do not connect to carburetor or fuel lines (because you also do not want to chance making a spark at the fuel system). (When finished charging the battery) Disconnect the chassis lead (black, negative lead of the charger) first.

I was just viewing several other vids on this topic. They mentioned it is a common mistake to hook up the charger to both battery terminals. Even the label on the back of the charger that he films tells you to hook up the second lead from the charger to the chassis.

Yeah, you can’t really read specific gravity with a hydrometer immediately after charging. The electrolyte won’t be thoroughly mixed. Let the automatic charger do its thing, then come back to the battery a day or two later or drive the car around to get the electrolyte mixed back up. If it was still taking a healthy charge after 2 hours, chances are you’ve got an ok battery. When a dead battery seems to hit full charge in just a few minutes, you’ve got a bad battery.

I read that you should not connect the black wire to the negative terminal,but to a metal part away from the battery

Drain a dead batery and fill with Distilled water and epson salt . Charge for a couple days and even a bad batery will be revived

Thank you

He still had - Acid build up, the "GREEN - CRUSTY'S " Under the Positive Cable @ 4:20 & above ...

A totally drain med battery can not be charged like this because the charger will not recognize the battery. Your battery was not fully drained. It was just half discharged.

If battery is out of truck ,how do i hoook the black clamps ???

Thanks!!!!

I still have my original Toyota 4runner battery - bought it in 2002 - that's 15 years old - still cranking, It's a panasonic car battery. I have a 5Watt solar attach to it - put it on in 2010

You should remove this vedio before other people get hurt from how you hooked up the battery.

I've been charging batteries for over fifty years this way and never ever had a problem. Put the charger on two amps and let it charge all day. Buy a battery charger with a built in no over charge system. When the battery is charged the charger shuts down.

Man youre in Show Business, get a new extension cord brother!

Wow being a newbie I thought this was a good video... I thought I learned a lot but when I read comments I actually realized that I’m back on square one! I will definitely keep researching to find my answer... hopefully I find it elsewhere! 😀

Does the battery charger make any noise when its on?

Thanks Man This Vid Helped me!!!!!

Dude, you made me seasick.

You should not pull on your electrical cord like that. Thanks for the info tho.

Only working when it’s plugged into an outlet won’t hold a charge any tips??

Watching that charger needle drop immediately after plugging it in from 100 to 75 on towards the red was a bad sign. But it seemed to accept a charge, started the car fine.

FIRST CONNECT RED + POSITIVE, THEN YOU NEED TO CONNECT BLACK - NEGATIVE TO GROUND ( BODY OF CAR)

I watch this video every time my battery dies lol. I keep telling myself to drive the van more but then a month later … i haven’t even touched it 😔

You just frayed the dang thang

check your water/acid level

all wrong never do negative first always positive and all ways put negative on a ground bolt so battery does not blow the acid out of the battery bc a negative and positive curent fighting each other can then make acid blow up

Remember he unpluged the charger before hooking up the battery

You need laces for your shoes too. 😂

Do you have to plug the charger in?

They said red first but my mind works and there is a spot on fire wall

Not a good idea hooking the charger up the the car battery which is connected to the terminals. Easy way to blow your electronic ECU and wires. For safety pull out the battery and charge it in your garag.

Can it still charge up a battery with it being charged up?

I'm going to end it all I had it I'm going to touch both terminals at the same time goodbye cruel world 😂😅😭🤤. I'm going to plug it in with my hands too that with my feet with my rubber tennis shoes to get it done quick. I'll do it if the guy first takes off a spark plug wire while the car is running I think that's a fair trade.

Every advice ever: connect red first...

All you did at the end was crank it up and said the battery bad how though it crunk up

Battery is fine but a car .ha ha ha !!! No battery and car are fine it's my brain that don't function properly

You should hook red one one first, Thid guy doesn't know what he is talking about

1st off he didn't tell you how to hook up the terminals. He showed that's it has power the. Said. I like to shut it off and hook it up while there is no power..but then yes he hooked up black first then red who h as long as the charger is off doesn't make a difference...but most chargers manuals sày to hook up pos n neg cables while power is off the. Turn on for charge..but yes of it is on the. Please please RED first lol

Wrong advice- Black should be connected to the chassis

Thanks. Now I know what a waste of time looks like.

Does the battery have to be in the car?

hi everyone ,if anyone else wants to discover how to recondition batteries at home try Corbandy Battery Blueprint Crusher (do a search on google ) ? Ive heard some pretty good things about it and my mate got cool results with it.

Go ahead stick on your nose robin bird

WRONG ! ALWAYS CONNECT RED FIRST THEN BLACK.

You did this wrong

im going to have too leave a thumbs down on this just becuase you put you foot on the extinction cord and pulled to unplug it. ahhhhhh SMH lol jk

BE AQWARE : he is doing it WRONG connecting... Always CONNECT RED FIRST ... when finished: DISCONNECT BLACK FIRST. .

Never Ever in my whole life have I ever thought I would find instructional videos on how to use a car battery charger. I honestly thought the human race would know how to do that. We live on a planet of idiots. No damn wonder people hope aliens exist lol. They probably have functional brains.

You connect the positive first and then the negative not the reverse, and then reverse when you take the cables off the battery