* Check your owner's manual: This is the most reliable source. The manual will specify the Group Size of the battery recommended for your Expedition. The Group Size is a letter and number combination (e.g., Group 65, Group 78).
* Look at the existing battery: The group size is usually printed on a sticker on top of the battery.
* Check the battery tray: Sometimes the battery tray itself will have markings indicating the recommended battery size.
* Use an online parts lookup tool: Websites like AutoZone, Advance Auto Parts, or Napa Auto Parts allow you to enter your vehicle's year, make, and model to find compatible batteries.
Without knowing your specific Expedition's details, it's impossible to provide the correct battery size. Using the wrong size battery can lead to problems, so it's crucial to find the correct one using the methods above.
