
How To Safely Jump Start A Vehicle With A Dead Battery & The Correct Way To Hook Up Jumper Cables
I want to show you a safe way to go
about jump-starting a car with a dead battery. First, we’re going to position
and prepare the vehicles. Park the vehicle with the good battery close to
the disabled vehicle, about 18 inches apart is good. That gives you enough room to work between the vehicles. The vehicles aren’t touching, but they’re
close enough that the cables can reach from one battery to the next. Now we’re
going to get in each vehicle and do a few things to prepare them for the
jump-starting process. And you’re gonna do these same things to both vehicles. If
the vehicle is an automatic, make sure the gear selector shift lever is in park.
If one of the vehicles happens to have a manual transmission, put that in neutral.
Then set the parking brake for each vehicle. Next make sure that anything
that’s electrical in your vehicle is turned off. Turn off the fan. Make sure
the radio is off. Make sure there’s no overhead lights on. Make sure your headlights are off. If you have anything plugged into a power
outlet, such as a charger, unplug that. We want to make sure that as much
electricity as possible is going from the good battery to the bad battery and
that no other device is trying to use that electricity. And lastly, take the
keys out of the ignition and set them aside. So both cars are ready to go now.
Get your cables out and stretch them out. And at all times, when you’re working
with these jumper cables, make sure that none of the clamps touch each other
during the process of hooking them up. You don’t want any sparks or shorts to
happen hooking up the cables. Almost every set of jumper cables will be
color-coded. The red clamps are for the positive terminals on your battery, and
the black clamps are for the negative terminals on the batteries. Before we
hook any of these clamps up, let’s figure out where we’re gonna go with them.
Locate the battery in each vehicle and find the positive and negative terminals.
They should be marked in different ways. There should be a red cover or coating
around the wire for the positive terminal, as well as the positive symbol.
And it should be a black wire and a negative symbol going to the negative
terminal. Sometimes you’ll find vehicles that don’t have a post right on the
battery. They’ll have a connection off to the side that indicates
that you should hook up one of the cables there. So look for that, or look in
your owner’s manual to tell you how you should jumpstart your vehicle. And this
is the battery in the disabled vehicle. It actually has a cover over it, and
you’ll find that in some vehicles. So you have to remove that cover. It’s usually
pretty easy to move. It snaps off. And here’s the bad battery. And it is marked
in red. There’s a red wire and a positive symbol. And there’s a black wire and a
negative symbol. We’re ready now to start hooking up the cables. And we’re going to
start and end with the disabled vehicle. We’re going to connect the positive
clamps first and then the negative clamps. Grab the red positive clamp and
attach it to the positive terminal on the bad battery. You can attach it right
at the middle on these clamps, but I think I can get a good grip there right
in the middle. So I’m gonna put it there. And for now I’m just gonna rest that
negative clamp along the wire of that positive one that I just attached to the
bad battery. Got the first one attached. Next, grab the other end of that red wire
and attach it to the positive terminal on the car with the good battery. We’re
gonna remove that cover to expose the terminal and then attach the clamp over
here. So, we’ve got a good connection there. Next, take the black negative clamp
that’s on the same end as that red one you just attached, and attached it to the
negative terminal on the good battery. So that just leaves us with this negative
clamp to put on the disabled vehicle. You do not want to put it on the negative
terminal of the bad battery. There’s no electricity flowing from the good
battery to the bad battery yet, but if you connect this to the negative
terminal on the bad battery there could be a spark. There’s a very, very remote
danger of that igniting some hydrogen gas that can form around the battery.
We’re trying to do it the very safest way, so even though that chance is very very slim, we don’t want to chance it! So we’re gonna be safe. So what you want to do is
connect this negative clamp to a piece of bare, unpainted metal, under the hood
of the disabled vehicle. So you’re looking for a piece of metal. It could be
a bare bolt sticking up. It could be a metal support under the hood. But you
want to make sure it’s not near any moving parts. No belts. no fans that
it’s gonna hit when you turn on the engine. So I’m going to attach it to this
bare metal section along the side of the hood of the car. So now our connections
are complete. And you can see, we kind of went in a circle. We started with the bad
battery, positive terminal; turned around, went to the good battery, positive
terminal; went to the good battery, negative terminal; turned back around to
the disabled vehicle, and put the negative black clamp on a section of
unpainted metal. So now we’re gonna get in the vehicle with the good battery. Put
the key in the ignition, start it up, and then let the car run for at least a
couple of minutes. If it’s really cold weather, you might even want to let it
run longer. Cold weather really does a number on car batteries. What you’re
doing right now is sending electricity to the bad battery. We’re actually kind
of charging it, so that can take a little bit. You want it to get a little bit of
charge in there before you actually try to start the disabled vehicle. After
you’ve let the other car run for a while, get in the disabled vehicle, put in the
keys, and try to start it. Okay, here goes. Hoping for the best. We’ve got
electricity; that’s a good sound! Hey, it worked! Alright – success! And if the vehicle starts, remove the jumper cables in
reverse order of what you put them on. Let it run for at least 15 minutes.
15 to 30. You can drive it around during that time to get that
battery charged up even more. If the other vehicle doesn’t start the first
time, get out of that vehicle and check the connections under the hood. Make sure everything’s tight. Let the car with the good battery run longer. Get more charge
in there, and then try again. If the disabled car doesn’t start after
two or three tries, you may have bigger problems than just a bad battery. And
sorry to say, you may have to get it towed to a shop to have it looked at. My
only other advice would be to always have jumper cables in your car, in your
vehicle. In every vehicle you have. The jumper cables come in different gauges. The lower the gauge, the better. The lower the gauge, the thicker the wire. Also, the
lower the gauge, the more the jumper cables will cost. But they will do a
better job. For me, I like the longer ones. Mine are 20 feet long. You can get them in all sorts of lengths: eight, ten, twelve feet. But these allow you to reach more
difficult spots. Portable jump starters are also a great idea to
have. They’re perfect for when your battery dies and there’s no other
vehicle around to jump your vehicle. So follow these steps, and you’ll have an
easy, safe way to jump start any vehicle.
good job honey!!!
This is very helpful. Thank you so much.
thank yo so much, i was stuck on the read and i remember watching this video just to know how to jumpstart the battery
😀
Awesome video! Very helpful! I just successfully jumped my car for the first time! Thank you!
Good video. Very helpful
Sir are u a mechanic or electrician?
thank you sir and to YouTube … the world makes close another into a much beautifull one GOD bless you and your family
Thank you for sharing this and for great sound and clarity. Very well done, especially for those that may not have understood fully this proceedure.
Back in the day had no jumper cables got stuck at the lake took two trucks had the steel bumpers touch them together jump the positive post with Jack handle started vehicle
Wow I charged dead battery all the time BUT after watching your vdo, I was doing it all WRONG. Now seem like I was lucky every time.
Thanks for the video. Like the way u explained everything..
I actually like this explanation, it’s really easy to follow.
I have a 2004 PT cruiser turbo I left the key turned on to row down the windows I forgot about it overnight next morning wouldn't start l took my battery to my mechanic he said it was dead will your process work for this battery
KEEP UP THE GOOD WORK
We with manual transmission cars can get a push or get the car rolling down hill, then pop the clutch to start the car.
As a potentially disabling and expensive experiment on my 2017 Toyota Corolla SE with a 6 speed manual transmission and hundreds of computer modules, I got the car rolling and popped the clutch. The car started, and no computers were fried.
I carry a set of 2-guage twenty foot jumper cables in case someone needs a jump start.
I learned from experienced mechanics positive good to positive bad , negative good to negative ground.
I do it with both on each car and it’s always fine with me
What is the opposite order your put them on??? Take off the wires from second car first?
After charging the bad battery, do you need to switch off the engine of the car with the good battery before starting the car with the dead battery?
My.car had a bad ground wire. They can be anywhere. I know a man the battery blew up.in his face.
When you rev up the charging car, the alternator puts out more juice. This can help start the other car.
Also, a bad batt can cause more explosive gases, so the ground to car metal is important.
I have also heard that when the dead car starts, it can kick back current to the other car and can damage electronics. So I have heard to turn on ac, fans, lights etc. I may be good to do this and see if the other car starts.
If not you can roll the dice with everything off but car computers are very expensive.
Good video.
Cheers
Thank you very much Stan. 🙂 Greetings from the Czech Republic. Very useful video for me with explanation.
Hey, thank you for the video! It was very helpful. Still one question: When removing cables, are the engines of both cars still running, or are the engines to be switched off first? thx a lot!
Can both cars be running while I remove the cables in reverse order? I'm doing this by myself so there's going to be a short time when both cars are connected and running. I just want to be sure I don't do any damage to the electronics on the "good" car. Apologies for being so obtuse.
I think you forgot to say to turn off the car with the good battery before you try to start the car with the bad battery. In modern vehicles with all those sensitive computer modules, you don't want to have 2 different running alternators connected to the same circuit.
I always leave the good car off with the keys of the ignition. I was taught not to turn it on bc it may cross the computers. It has always worked for me to use the battery to charge the dead car and recharge the good battery after the cables are disconnected.
Your method is very safe. It save us from a lot of trouble.
You don't show that ur charging bad battery or starting that car by through good battery
Just a quick question. When you start the dead vehicle, do you off the ignition of the good vehicle? Or, it should be running as well?
Check out http://bit.ly/2XC9mrt if you would like to save money on batteries and reduce waste. Thank me later
I just did that , and the car with dead battery won't start till I connect both negative terminal together
What if i connect the jumper to negative to negative not in the metal sir..what happend to the bad battery..it can be useful?
Reverse like HOW?
If we jump start, battery of both cars are same????
Shud we shut off the engine of good battery car after we have charged the bad battery and then start the engine of bad car.
I like how you demo your car to jump start your dead battery
thumbed up for the bad battery, good battery, 1 2 3 4 steps to connect the right way. i take a screenshot of that and put on my phone to remind me the correct order
One thing that is not clear, is that when you start the car with the flat battery, does the good car still runs?? or should you disconnect the two cars before getting the bad one started?
Thanks sir
Love flow chart.
What if you cannot find any unpainted bare metal to ground? I know someone who always put it in the negative
Thank you for the help!
I have always connected (-) to (-) and (+) to (+) and always made sure to start to good car and let it run for 10 seconds or so before trying to start the dead car. And I have always connected negative first then positive, and to take off I always took positive off first then the negative, meaning I always thought that you wanted to be grounded….is that true????? regarding grounding, or does it even matter?
My car never starts When clamping to the chassis.
Turn the good car engine off before you try to start the bad car engine.
I just tried this method. So I have a dead battery, when I followed the instruction and put the cables on. After I tried to start the car, my negative side sparks. Also, the car (with good battery) negative side also sparks… is it normal? just sparks a little bit… but it looks so scary…
Literally didn’t know how to do it until today at the Walmart parking spot where I was force to lean thankyou for making it easy
Great job.
Is it safe just to add a switch on the black cable, in the middle, in order to avoid any sparks?
Really hot weather is just a bad on batteries.
Thank you for making this! I successfully got my car started! You're my hero!
GOOD SIMPLE EXPLANATION
Damn. I need to start a YouTube channel. Portable jump start and compressor combined. Simple.
Thank you Sir for the informative guide. This will definitely help many people. Tip: do not let anyone borrow your jump leads, they rarely give them back!!!!
why not just jump on the engine side for (-) wire?
those lil lithium battery jumpers work great
Woulda been nice for you to demonstrate the order to remove the cables after restarting!
I have a portable battery charger in my trunk. All i have to do is hook up the cables,turn the switch to on,start my car,return the portable charger to my trunk and drive away. Since the portable battery charger needs to be switched to on before it will work I don't need to be concerned about which cable should be connected first.
Excellent, but I thought you had to turn the good car off first, after running power into the bad car, for about 5 minutes, before you ignite the bad car, no? You don't want to charge each car against each other, that can mess up your electrical stuff.
It is sound and clear…! Tq. Sir. From Malaysia.
your video is simple, clear and helpful. Thanks
Thank you very much sir.This is really, a usefull information.
Thanks it helped
I put the negative clamp on the dead battery before connecting negative clamp on good battery…it avoids getting a spark…disconnect both negative clamps then positive clamps…also to avoid sparks 👍👍
Do you have to turn off either /both engines when removing cables after jump starting battery or can they be removen with engines running?