How to Replace Your Car Battery

Posted on: 29 December 2015

Unfortunately, car batteries don't last forever, and to ensure you aren't left stranded in a parking lot with an engine that won't turn on, it is best to replace them on a semi-regular basis (or whenever the manufacturer recommends). If you happen to leave your headlights or interior lighting system on, you could also drain the power and may need to replace your battery sooner. While professionals can do this service for you, you can save money and time by easily doing this repair yourself.  After determining and purchasing the right kind for your vehicle, check out the guide below for the next steps to battery replacement.

Removing the Old Battery

With the engine off and car in park, open the hood and locate the old battery. You can then remove the negatively charged cable (should be black) using a wrench or pliers to loosen the nut. At this stage, make sure never to place a metal object next to the battery post; it could result in an explosion if the timing and charge is right.

After this step, disconnect the positively charged cable (should be red) in the same manner as the black, and remove the clamp keeping the battery in place. Then, carefully lift up the battery using a strap (if provided). This might be the hardest part of the whole process due to the battery's weight.


Once the battery is removed, you have to deal with disposal. It is not advised to simply throw it in your trashcan, as the battery acid could leak and present a safety hazard in either your garbage or the landfill. Instead, take it to a designated recycling or disposal center to ensure it is safely taken care of. Certain auto stores or repair shops may also take them for a fee.

Installing the New Version

The new battery can then be placed in the empty chamber and secured with the clamp or retainer. Then, remove the safety caps on top of the posts, clean the battery connectors with a dry cloth, and connect the positive and negative wires to their respective positions— which will be clearly labeled on your battery.

As a last step, you can add grease and anti-corrosion washers to the connectors on the battery to increase the efficacy of the device and prevent wear and tear. Replacing a battery is no-doubt one of the easiest repairs for your car and can be easily done in your free time.

However, if you need any help with this process or any other automotive repairs, you shouldn't hesitate to contact a local auto shop.