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How to Disconnect and Install a Car Battery

Auto Mechanic Replacing Car Battery


When you need to replace a dead battery, you could head to the service department at Ocean Honda of Burlingame. However, you can also learn how to disconnect and install a car battery right from your garage in Daly City. How do you complete the job safely? Find out with tips and tricks from our technicians. 

How to Disconnect the Battery

Before you begin, you’ll need to put on a set of insulated work gloves and safety goggles. This will protect you against sparks and corrosive elements in the battery. Be sure you’re in a well-ventilated area without any jewelry or accessories that might get in your way. Then grab a few zip ties to keep your cables in place, and get started:

  • With the car turned off, look for the negative terminal. It will have a black plastic cap or a minus sign nearby.
  • Grab the bolt head of the negative terminal with one wrench or pliers.
  • Use a second wrench or pliers to remove the nut, then pull the negative cable away and secure it away from the battery.
  • Repeat the steps with the positive cable, and don’t let the two cables touch. Cover the positive cable end with a cloth to avoid metal-to-metal contact.
  • If present, remove the securing bracket with your pliers or wrench.
  • Lift the battery straight up and keep in mind, many batteries weigh up to 40 pounds.

How to Install the Battery

You’re halfway through the process in South San Francisco, so how do you get your replacement battery in place?

  • Grab your new battery and carefully place it into the battery tray.
  • Tighten the hold-down clamp to secure your battery in place.
  • Spray some anti-corrosion solution on the positive and negative terminal if you’d like, though this is optional.
  • First connect the red cable, then connect the black cable.
  • Try to move the battery to make sure it’s solidly in place.
  • Start the car and admire your work!

Get Quality Car Care with Ocean Honda of Burlingame

Now that you know how to disconnect and install a car battery like a pro, do you have any questions? Feel free to contact us at Ocean Honda of Burlingame. We’d be happy to help you select a new battery for your car, and we can even install it for you if you’d prefer. Schedule your appointment or stop by our dealership in Burlingame – just a short stop from Palo Alto!


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