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The Way To Fit A New Auto Battery.

If you have never changed an auto battery before, or your auto has special requirements like battery registration, or you do not have the required tools , you may be better to get auto battery installation technician to carry out the job for you.

On the other hand you may want to change the auto battery on your own. The following is a general overview on the way to complete it yourself. But before attempting to change You should always go over the auto manufacturers guidance for your particular automobile.

If your changing the battery yourself you may want to consider that modern autos are electrical dependent and store configurations for many electrical components including ,windows, sunroofs, radio settings. In the case where you battery may be dead , those settings may have already gone, or if you remove your battery with no external power back up you may lose these settings.

For autos fitted with the latest Stop/Start systems and some modern autos have intelligent battery systems that keep track of the power level coming from the alternator to the battery. These type of autos can require the new battery to be registered to the auto .

Unfortunately these kinds of battery registration tools come at high price, and whilst you may take the auto to a nearby service center that has the tool, they may well unwilling to register the new battery as they have not replaced it.

Important !, if your auto is fitted with the new AGM type battery it needs to be replaced with the very same style and not a standard lead acid type as this could occasionally result in electronic problems and early battery breakdown.

Always make sure you establish you have the appropriate auto battery prior to attempting to change it out, most batteries come with a label which will possibly on the top or side this contains the battery type, battery amps, and battery cranking on it.

Battery Installation Approach For Doing It Yourself.

Procedure 1 Make Sure Everything Is Switch Off.

Ensure all your auto electrics are completely off and auto keys have been removed from the ignition.

Procedure 2 Find The Automotive Battery.

Depending on your auto type the following there are several locations you may find the battery , the general battery spots are under the bonnet, under the seats, and in the boot region.

Procedure 3 Take Away Battery Hold Downs.

Your battery will probably have a hold down over the top or a small clamp at the bottom fixing it into place. These are quite often held down with 8mm,10 mm, or 13mm bolts or nuts,you may need a long socket and bar set .

Beware as autos age the brackets start to become rusted, which might consist of needing to replace the battery tray. (Spray some release agent on if they look rusty).

Procedure 4 Hook up Additional Power (Advised)

Connect a battery memory saver to the automobile , make sure you follow the manufacturers guidance on the most suitable method do do this .

Procedure 5 Removing The Old Automobile Battery.

Whenever you disconnect the worn out battery, and you have a battery memory saver attached the battery terminals will still be live.

When unfastened, you will want to make sure that the terminals do not enter into contact with another metal surface. Upon removing attempt to cover them using a non conductive object.

Most auto battery terminals use 8mm,10 mm,13 mm nuts these are generally able to be undone with a spanner.

Disconnecting the terminals.

Remove Negative Terminal 1st.

The first terminal to remove should be the negative this has the - (minus) mark on it or the battery area itself.

Remove Positive Terminal 2nd.

Then take off the positive terminal which has the + (plus) sign on it or the battery itself.

When you have the terminals unhitched move them out of the way so you have full access to extract the battery (ensure that its not possible for the removed terminals to come into contact anything at all). Various auto batteries also have a gas venting line attached, this needs to be removed before extraction.

Procedure 6 Connecting the new automobile battery.

Ensure that the battery place is clear and tidy, then verify the battery terminals not in the way and place the auto battery back into place.

Secure the Positive Terminal 1st

Take away the non-conductive protection from the positive battery terminal and attach to the positive terminal on the battery. Make sure it is secure and then re tighten it.

Hook up the Negative Terminal 2nd

Remove the non-conductive shield from the negative battery terminal and attach to the negative terminal on the battery. Ensure to push it down and afterwards re tighten. If your battery has gas venting pipe, reconnect to the new battery


Procedure 7 Detach the external power/battery memory saver (Important !) .

Never turn on or start the auto without detaching the external power supply first.

Procedure 8 Start the automobile.

You are able to now start the auto to confirm everything is performing as it should , at this point you can also hook up a multimeter to check power output from alternator.

Procedure 9 Refit the battery hold downs.

Double check everything is ok and proceed to refit the battery hold downs making certain your tools do not make connection with the battery terminals.

Procedure 10 Stop/Start and Batteries Requiring Registration.

You may now link the battery registration tool and perform the procedure for Stop/Start and Batteries Requiring Registration .

I hope you find this guide useful on how to fit your car battery, remember if your are not comfortable in doing so , get a mobile battery replacement professional to complete it for you.


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