2019 Ford Explorer Battery Replacement – A Professional DIY
Replacing the battery in your 2019 Ford Explorer is a manageable DIY task that ensures your vehicle remains reliable for daily commutes or off-road adventures. This guide walks you through selecting the correct group size, the physical installation process, and the essential Battery Management System (BMS) reset to protect your new investment.
It is a frustrating feeling when you turn the key or press the start button on your Explorer only to hear a series of rapid clicks. You likely rely on your vehicle for everything from school runs to weekend camping trips, and a dead battery is the ultimate momentum killer.
The good news is that a 2019 ford explorer battery replacement is a project you can easily tackle in your own driveway with just a few basic hand tools. Performing this task yourself not only saves you a significant amount in dealership labor fees but also gives you the peace of mind that the job was done correctly.
In this guide, we will cover the specific battery specifications for your engine type, the safety precautions necessary for handling lead-acid components, and the “secret” reset procedure your Ford requires. Let’s get your Explorer back on the road with maximum cranking power.
Signs You Need a 2019 Ford Explorer Battery Replacement
Your vehicle usually provides several warning signs before the battery fails completely. Recognizing these symptoms early can prevent you from being stranded in a parking lot or, worse, out on a remote trail.
One of the most common indicators is a sluggish crank. If the engine seems to struggle or turns over more slowly than usual when you start the car, the battery’s voltage is likely dropping under load.
You might also notice the “Battery Saver System” message on your infotainment screen. This is a clear signal from the Ford computer that it is shutting down non-essential electronics to preserve enough power to start the engine.
Other signs include flickering interior lights, erratic behavior from the power liftgate, or visible corrosion around the metal terminals. If your battery is more than three to four years old, it is statistically nearing the end of its reliable lifespan.
Choosing the Right Battery: Group Size and CCA
Before you head to the auto parts store, you must know exactly which battery fits your specific trim level. The 2019 Ford Explorer was available with different engines, and they do not all use the same battery size.
Understanding Group Sizes
The most common size for the 2019 model is the Group 65 battery. This is a larger battery designed to provide high Cold Cranking Amps (CCA) for the 3.5L V6 and the 3.5L EcoBoost engines.
However, some configurations, particularly those with the 2.3L EcoBoost engine, may utilize a Group 94R (also known as H7) battery. Always check the label on your existing battery or your owner’s manual to verify the physical dimensions and terminal orientation.
Cold Cranking Amps (CCA) and Reserve Capacity
If you live in a colder climate, prioritize a battery with a higher CCA rating. This rating measures the battery’s ability to start an engine in freezing temperatures when oil is thick and chemical reactions are slow.
For off-roaders who run auxiliary lights or winches, Reserve Capacity is equally important. This represents how long the battery can power essential systems if the alternator fails or if you are running accessories while the engine is off.
Essential Tools and Safety Gear for the Job
You do not need a professional mechanic’s rolling tool chest to complete this task. A few standard items found in any basic toolkit will suffice for a successful installation.
- 10mm Socket or Wrench: This is the primary size used for the terminal clamps and the battery hold-down bracket.
- Socket Extension: A 6-inch extension makes reaching the hold-down bolt much easier, as it is often tucked deep in the engine bay.
- Battery Terminal Cleaner: A small wire brush tool helps remove oxidation from the cable connectors.
- Safety Glasses and Gloves: Batteries contain sulfuric acid; protecting your eyes and skin is a non-negotiable safety step.
- Memory Saver (Optional): This device plugs into your OBDII port to maintain power to your radio presets and clock while the battery is disconnected.
Before you begin, ensure the vehicle is parked on a level surface, the engine is off, and the parking brake is firmly engaged. Remove any metal jewelry, such as rings or watches, to prevent accidental electrical shorts between the battery terminals and the chassis.
Step-by-Step: 2019 ford explorer battery replacement Instructions
Now that you have your tools and your new battery ready, follow these steps carefully. The order in which you disconnect and reconnect the cables is critical for vehicle safety.
Step 1: Locate the Battery
Open the hood and locate the battery on the driver’s side of the engine compartment. On the 2019 Explorer, it is often partially tucked under a plastic cowl or cover that may need to be unclipped or moved aside.
Step 2: Disconnect the Negative Terminal First
Use your 10mm wrench to loosen the nut on the negative (black) terminal. Always remove the negative cable first to break the ground circuit and prevent sparks if your wrench touches a metal part of the car while working on the positive side.
Step 3: Disconnect the Positive Terminal
Once the negative cable is tucked safely aside, loosen and remove the positive (red) terminal. Ensure the cable end does not touch any metal components while the battery is still in the tray.
Step 4: Remove the Hold-Down Bracket
Locate the long bolt and bracket that secures the battery to the tray. Use your 10mm socket and extension to remove the bolt, then lift the bracket out of the way. Carefully lift the heavy battery out of the engine bay.
Step 5: Clean and Install
Inspect the battery tray for debris and clean the cable connectors with your wire brush. Lower the new battery into the tray, ensuring the positive and negative posts are in the correct orientation. Reinstall the hold-down bracket to secure the battery.
Step 6: Reconnect the Terminals
Connect the positive (red) cable first and tighten the nut until the clamp cannot be moved by hand. Finally, connect the negative (black) cable. You may see a small spark when the negative cable touches the post; this is normal as the vehicle’s computers power back up.
The Critical Step: Resetting the Battery Management System (BMS)
Many DIYers finish the physical installation and assume the job is done. However, for a 2019 ford explorer battery replacement, you must perform a BMS reset to ensure the longevity of your new battery.
Modern Fords use a smart charging system that tracks the age and health of the battery. As a battery gets older, the alternator increases the charging rate to compensate for wear. If you do not reset this system, the car will continue to “overcharge” your brand-new battery as if it were the old one.
To reset the BMS without a professional scan tool, follow this manual sequence:
- Get into the driver’s seat and close all doors.
- Switch the ignition to ON (Engine OFF).
- Flash the high beams 5 times.
- Press and release the brake pedal 3 times.
- Wait about 10 seconds. The battery icon on the dashboard should flash, indicating the reset was successful.
If you skip this step, you may find that your expensive new battery fails prematurely or that your auto start-stop system stops functioning correctly. This reset tells the computer to treat the battery as a “fresh slate.”
Maintaining Your New Explorer Battery for Long Life
Once your new battery is installed, a little bit of preventative maintenance can extend its life significantly, especially if you use your Explorer for overlanding or off-road excursions.
Check the terminals periodically for “white fuzz” or corrosion. If you see buildup, clean it with a mixture of baking soda and water. Applying a thin layer of dielectric grease or terminal protector spray can prevent moisture from causing future oxidation.
If you plan to leave your vehicle sitting for more than two weeks, consider using a battery tender or maintainer. Modern vehicles have a “parasitic draw” from computers and security systems that can slowly drain a battery during long periods of inactivity.
Finally, ensure the hold-down bracket remains tight. Excessive vibration is one of the primary causes of internal battery failure. If you are bouncing around on washboard dirt roads, a loose battery can suffer internal plate damage very quickly.
Frequently Asked Questions About 2019 Ford Explorer Battery Replacement
How much does a 2019 ford explorer battery replacement cost?
If you do it yourself, you will typically pay between $150 and $250 for a high-quality AGM or lead-acid battery. Dealerships often charge between $350 and $500 when you include labor and their specific part markups.
Can I use a standard battery instead of an AGM battery?
If your Explorer came equipped with an Absorbent Glass Mat (AGM) battery from the factory, you should replace it with another AGM. These are designed to handle the high electrical demands of modern safety tech and auto start-stop systems.
What happens if I don’t reset the BMS?
While the car will still start and drive, the alternator will likely overcharge the new battery. This leads to excessive heat and internal degradation, which can cut the life of your new battery in half.
How long should a battery last in a 2019 Ford Explorer?
On average, you can expect a battery to last 3 to 5 years. Factors like extreme heat, frequent short trips, and high electrical accessory usage can shorten this timeframe significantly.
Summary of Key Takeaways
Completing a 2019 ford explorer battery replacement is an empowering way to maintain your vehicle’s reliability. By choosing the correct Group 65 or 94R battery and following the proper “negative-first” disconnection sequence, you ensure a safe and effective repair.
Remember that the job isn’t truly finished until you perform the BMS reset sequence. This simple series of high-beam flashes and brake taps is the secret to getting the full five years of life out of your new power source.
Take pride in your work and enjoy the confidence that comes with a strong, reliable start every time you turn the key. Whether you are heading to work or hitting the trails, a healthy battery is the heart of your Ford’s electrical system. Stay safe and keep exploring!
- Smallest Chevrolet Car – Maximizing Utility And Efficiency - September 28, 2026
- Chevrolet Small Car Models – A Practical Owner’S Guide To Maintenance - September 28, 2026
- Chevrolet Hhr Miles Per Gallon – Real-World Efficiency And Maintenance - September 28, 2026