How To Change A Car Battery

How To Change A Car Battery


Hi there I’m Midge and I have been modifiying
cars for way too long. Today we are going to look at one of the most
common things you’ll find in winter, which is a dead battery. Winter is the worst time for car batteries,
what you’ll find is a tripple whammy effect, it won’t take a charge so well, the power
output starts to drop and you will be using a load of electric accessories like you headlights
and your wipers an heated seats. It is the worst time, this is when your battery
is most likely to die. If you find your car struggling to start in
the morning, it’s not cranking over very well, all you need to do is test the battery first. This will save you a few quid just incase
the battery is OK and it just needs a charge. Let’s go and get a bettery tester and find
out. A lot of people don’t realise that you can
still have 12 Volts in your battery but it still won’t crank over properly, it can still
be knackered. The only way to really test it is by getting
a load across it with a proper drop tester like this. Right, the most important thing is to make
sure you get these clamps on the right terminal. The positive terminal, which is a plus sign,
is the red, the negative terminal, which is the minus sign, is the black. Don’t mess it up because it will really ruin
your day. As you can see, this battery is running about
3 volts and that means it is properly knackered. when we put a load accross it, it goes right
down to bad. Bad means bad, batteries had it, we are going
to have to replace it. All you need to change a battery is a very
simple set of tools, socket set, spanners, it is normally pretty easy. right, the first thing to do is to get these
terminals off. You want to start with the negative terminal
because you don’t, if you take the positive off first it will be wanging around and you
don’t really want it shorting out on anything. So take the negative off first, then the positive
and tuck them away somewhere nice and neat so they’re not going to get in the way. And there goes the positive. On a golf you have got this fuse box thing
on the top aswel;, you might have that, you might not but that needs to be removed aswell. With both terminals tucked away, now it is
time to get to the battery. The battery will be clamped down pretty solid. On Japanese cars sometimes they have the clamps
on the top, European cars you will fin, because of the shape of the battery, they clamp it
down at the bottom. so what we need to is get access to do the
clamp so we can remove the battery. Righ on the golf it looks like it is going
to be a bit of a pain, so we need to remove a bit of trim just to get to the clamp. You might have to do this, you might not. Don’t forget on some cars the battery could
be in the boot so make sure you know where your battery is first. Right, with that bit of trim removed you can
actually see where the battery clamps down. The first thing we need to do is get that
clamp out and then we can pull the whole battery. Be careful when you use your new tools not
to touch the terminals, obviously touching the positive terminal with your tools is bad
news. Right, the clamps off, the batteries now free. All we need to do is take it out. Be really really careful not to drop it on
your feet. And try to keep the battery upright because
it does contain sulphuric acid. Right, I have just been down the shops, picked
up a nice new battery. The most important thing with these is to
make sure you get the right battery for your car. All th terminals on different batteryies are
in different places so make sure when you speak to your parts supplier that you get
the right battery with the right ampage and the right rating for your car. Let’s get this one and whang it back in. Refitting is basically the reverse of how
you took it out. Just make sure that you clamp it down firmly. you don’t want your battery flopping around
all over the place while you are driving. They are dangerous, they contain acid and
they make explosive gasses. Make sure you clamp them down all the way. Righty Tighty, left loosey. right Once you have got your battery nicely
clamped down, it shoudn’t move around, it is time to get the terminals back on. Start with the positive terminal. Put that back on, tighten that up first. Right once you have put the negative terminal
on, you have got power going throught the system. You might get a little bit of a spark, but
it’s not going to hurt you. Last piece of the puzzle. Check nothing moves around and everything
is in place, now give th car a crank over and make sure everything is how it should
be. Right hopefully that will save you a couple
of quid. When you get rid of your old battery, make
sure you do it responsable and take it to a recycling centre. For more videos be sure to check out silverlinetools.com.

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