Replace Car Battery on Ford Fusion 2013 to 2020

Can’t start your Ford Fusion because of a dead battery? Learn how to fix the problem by replacing the battery. This guide provides a step-by-step procedure for replacing the battery on a Ford Fusion 2013 to 2020.

Signs Your Ford Fusion Battery Is Failing

• Slow or labored cranking, especially on cold mornings
• Clicking when you turn the key or press start, with dim dash lights
• Electrical glitches: flickering lights, radio resets or random warning lights
• A battery warning light or a battery older than about four to five years
• Swollen case, leaking acid or heavy corrosion on the terminals

Confirm the Battery Is the Problem

• With the engine off, a healthy battery reads about 12.6 volts. Below about 12.2 volts it is significantly discharged.
• Most parts stores will load test the battery for free.
• With the engine running, voltage should read roughly 13.5 to 14.8 volts. If not, check the alternator before replacing the battery.
• Clean corroded terminals first; a poor connection can mimic a dead battery.

What you will need

• 8mm socket wrench
• 10mm wrench
• T5 Battery 12 Volt
  • Cold Cranking (CCA): 600  Amps or higher

Procedure

Open the hood. If you need help with this step, follow this procedure first.

Locate the battery on the driver’s side of the engine compartment, next to the brake fluid reservoir.

Loosen the 10mm bolt on the front side of the battery tray using a 10mm nut driver or 10mm socket wrench. Bolt size may vary depending on the model year. 

Pull the metal bracket and 10mm bolt out of the battery tray.

Slide the battery forward to access the negative terminal.

Loosen the 10mm bolts on the battery terminals, starting with the negative.  

Pull the cables out from the battery posts.

Carry the battery out of the vehicle.

Clean any debris from the battery tray using a vacuum or a brush.

Place the new battery on the tray.

Connect the terminals of the battery and tighten the 10mm bolts. Connect positive first and negative last. 

Slide the battery back to its original position.

Reinstall the metal plate and 10mm bolt back to the battery tray.

Reset the Battery Monitoring System

The Fusion has a battery monitoring sensor on the negative cable that tracks battery health and controls charging. After installing a new battery, the system should be reset so it does not treat the new battery like the old one. Without a reset it can take several hours of parking for the system to relearn. A scan tool such as the YOUCANIC UCAN-II Pro can perform the battery reset on supported models.

Check these troubleshooting and repair guides for more help on your Ford.

Frequently Asked Questions

What battery does a 2013 to 2020 Ford Fusion use?

A group T5 battery with at least 600 cold cranking amps, as listed in this guide.

Where is the battery in a Ford Fusion?

On the driver’s side of the engine compartment, next to the brake fluid reservoir.

Do I need to reset anything after replacing the Fusion battery?

Yes. Reset the battery monitoring system so the charging system adapts to the new battery.

Which terminal do I disconnect first?

Disconnect the negative terminal first and reconnect it last.

Related Guides

• Ford Fusion Key Fob Battery Replacement
• Open Door of a Ford Fusion with Dead Battery
• 2013 to 2020 Ford Fusion Door Panel Removal
• 2013 to 2020 Ford Fusion Common Problems and Recalls

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