How to Disconnect and Install a Car Battery

Auto Mechanic Replacing Car Battery

If you don’t have time to trek to the service department, learning how to disconnect and install a car battery can easily be done from the comfort of your own home. However, there are a few things to keep in mind to stay safe during the process. Take a look at our step-by-step guide to replace your car battery in Sacramento, and feel free to get in touch with us at Auburn Honda with your questions!

Disconnecting Your Battery

Safety is key when working under the hood, so put on a set of insulated work gloves and goggles to protect yourself from sparks and corrosive chemicals. Work in a ventilated area and take off any metal accessories that could get in the way of your work. We also recommend grabbing zip ties to keep your cables secure, along with two wrenches or pliers to work quickly.

  • Make sure your car is off. Look for a negative terminal on your battery with a black cap or minus sign.
  • Use one wrench or pliers to remove the bolt head of the negative terminal.
  • Use the second wrench or pliers to remove the nut, and pull the negative cable away. Secure this cable away from the battery.
  • Repeat the same process for the positive terminal. Place a cloth over the positive cable end to avoid metal-to-metal contact, and keep the two cables away from each other.
  • Remove the securing bracket if your car has one.
  • Lift the battery straight out of the car. The battery will be heavy.

Installing Your Battery

Now that the old battery is out, it’s time to install the new battery in its place. The installation process is similar to the removal, so just follow these steps in your Roseville garage.

  • Get your new battery and place it into the battery tray.
  • Tighten the hold-down clamp to make sure your battery is safe and secure.
  • If you’d like, you can use an anti-corrosion solution on the terminals of the battery to prevent rusting.
  • Connect the red cable first, and then connect the black cable. 
  • Double-check your work by trying to move the battery. If it’s in place, you’re good to go.
  • Start the car and make sure everything is working properly.

Find Out More with Auburn Honda

If you need additional assistance in the Citrus Heights area, get in touch with us at Auburn Honda. Our service technicians would be happy to help you with any DIY work, but we can also take care of the heavy lifting for you. Schedule your service appointment today or contact us at your convenience!


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