if your car has a battery that needs
replacing and you want to do it yourself
then you will want to make sure that you
do it safely and correctly so watch on
to find out how you can do this safely
and not get shocked
hurt start a fire or cause the battery
to explode positive or negative watch on
to see which wire to remove first and a
demo of how removing the wrong one first
could be dangerous before you get
started if you're not sure where the
battery is located check the owner's
manual some cars have a battery located
in the trunk and not in the front under
the hood you can also use an obd vehicle
memory saver if you are worried about
keeping your radio station presets and
other vehicle settings that may be lost
when you unplug the old battery some
vehicles also have a stereo system that
needs a security code to be entered if
the power is lost also without using a
memory saver your car may idle rough for
the first few trips until it relearn's
the air/fuel ratios FRAKKING CREATIONS a
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channel or check out our website step 1
which wire do you remove first this is
very important to ensure the safety and
prevent chances of you getting hurt you
will need to determine if your car is
negatively grounded or positively
grounded most cars are negatively
grounded and so the negative wire is
removed first and here's why when the
car is negatively grounded it means that
the negative terminal of the battery is
basically connected directly to the body
and metal components of the car the car
effectively becomes negative terminal of
the battery if you were to make a
connection from the positive terminal of
the battery to any metal part of the car
you would create a short circuit which
would create a big spark that could lead
to fire the battery exploding and you
getting hurt if your car is negatively
grounded and that means that the
negative terminal of the battery is
basically directly connected to the body
of the car and then you have the
positive side going to the rest of the
car which is like your fuse box and such
now if you don't first remove this
before you start unbolting the positive
terminal you may accidentally touch
another component of the engine bay
which is metal and cause a spark like
that and that's basically a
short-circuit and when that happens you
can definitely hurt yourself so what you
want to do first is first remove the
negative terminal and then you can
unbolt this or even if you touch
something it won't you won't get a
short-circuit so check your car's manual
if you're not sure
typically a 10 millimeter socket is
usually the correct size to use once the
correct cable is removed first the car
body and any attachment parts is no
longer connected to the battery and so
no short circuits can happen of course
you still need to make sure that you
don't accidentally touch the two poles
of the battery with anything conductive
like a wrench step 2 remove the other
cable positive cable in our case make
sure both cables are out of the way and
have no way of accidentally flipping
around and touching the terminals of the
battery step 3 remove the bracket
holding the battery down on a battery
bracket like this one you will have to
make sure to hold on to the bars so that
they do not drop into the engine bay you
could also leave them attached by just
loosening enough until you can remove
this may make it easier to install on
the new battery
step 4 remove the battery be careful as
you want to keep the battery upright and
vertical and don't tilt the battery
accidentally while transporting it it is
quite heavy so make sure to have proper
footing and lift using your core muscles
to avoid injuring yourself step 5
clean the battery cover and tray if you
want and we install step 6 carefully
install the new battery in the same
orientation as the old battery polarity
must be similar make sure to keep the
battery up right to prevent acid leaking
out step 7 reinstall the battery bracket
making sure that the hook is installed
correctly loosely attach both ends and
adjust as needed before final tightening
then tighten down and make sure the
battery is solidly held in place without
over-tightening the battery should not
be movable
step 8 remove the protective plastic
caps then clean both battery posts and
the cable terminals with a battery post
terminal cleaner brush clean the
shavings off make sure not to breathe in
the particles scraped off or let it get
into your eyes there are metal shavings
and corrosive particles in it step 9
apply dielectric grease to prevent
corrosion step 10
install the cables in the reverse order
of removal in our case positive than
negative don't over tighten the cable
should not be movable
step 11 remove your memory saver if one
is used then try to start your car
everything should work
bonus tip when you buy a new battery you
may be charged an environment fee this
is to ensure that you bring back the old
battery for recycling instead of
throwing it out you can get the feedback
by returning the old battery to the
place where you purchased new one just
make sure you keep your receipt and
bring it with you
sometimes you will encounter someone
that doesn't know about the environment
fee and doesn't want to refund that to
you that's what happened to us I just
ask to speak with someone higher up like
a manager and they will usually know
what to do hope you found the video
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