2016 Ford Explorer Battery – Choosing, Replacing, And Resetting
Replacing the battery in your 2016 Ford Explorer involves more than just swapping a black box under the hood. This guide covers everything from selecting the correct group size to performing the critical Battery Management System (BMS) reset to ensure your new unit lasts for years. Whether you are prepping for a cross-country road trip or just need a reliable daily driver, getting your power source right is the first step toward vehicle reliability.
We have all experienced that sinking feeling when you turn the key or press the start button, and nothing happens but a series of rapid clicks. It usually happens at the worst possible time, like a freezing morning or when you are packed for a weekend camping trip. When your 2016 ford explorer battery begins to fail, it affects everything from your infotainment system to your power liftgate.
I promise that by the end of this article, you will feel confident choosing the best replacement and installing it like a pro. We will look at the technical specifications your SUV requires and the specific steps needed to keep the computer happy. Let’s dive into the details and get your Explorer back to its peak electrical health.
Understanding Your 2016 Ford Explorer Battery Needs
The 2016 Ford Explorer is a sophisticated machine with high electrical demands. Between the heated seats, the Sync 3 infotainment system, and the various driver-assist technologies, your 2016 ford explorer battery has a lot of work to do. Choosing the wrong one can lead to premature failure or even electronic glitches.
Identifying the Correct Battery Group Size
Most 2016 Ford Explorers, especially those equipped with the 3.5L V6 or the 3.5L EcoBoost engine, utilize a Group 65 battery. This is a larger battery format known for providing high cranking power and a significant reserve capacity. It fits snugly into the battery tray located on the driver’s side of the engine bay.
However, some models with the 2.3L EcoBoost engine might use a Group 59 or a Group 94R depending on the specific trim and regional configuration. Always check your owner’s manual or the label on your existing battery before purchasing a replacement. Using the wrong physical size can prevent the hold-down bracket from securing the unit, which is a major safety hazard.
Cold Cranking Amps (CCA) and Reserve Capacity
When shopping for a 2016 ford explorer battery, you will see a rating for Cold Cranking Amps (CCA). For this vehicle, you generally want a battery with at least 650 to 750 CCA. If you live in a colder climate, opting for a higher CCA rating ensures the engine turns over quickly even when the oil is thick and the temperature is well below freezing.
Reserve Capacity (RC) is equally important. It measures how many minutes the battery can supply power if the alternator fails. Look for a battery with an RC of at least 110 minutes. This provides a safety net that can get you to a service station if your charging system encounters an issue while you are on the road.
Symptoms of a Failing 2016 Ford Explorer Battery
Batteries rarely die without giving you a few warning signs first. Recognizing these symptoms early can save you from being stranded in a parking lot or out on a remote trail. Modern Fords are particularly sensitive to voltage drops, leading to some unique warning signs.
Slow Engine Crank and Dimming Lights
The most common sign of a weak 2016 ford explorer battery is a sluggish start. If the engine takes longer than usual to fire up, or if the starter sounds like it is struggling, the battery’s internal resistance is likely increasing. You might also notice that your headlights dim significantly when you are idling at a stoplight.
Watch your dashboard during the startup sequence. If the needles on the gauges sweep erratically or the interior lights flicker, the battery is no longer providing a steady stream of current. These are clear indicators that the lead plates inside are sulfated and can no longer hold a full charge.
The “Battery Saver Active” Message
Ford vehicles are equipped with a “Battery Saver” mode. If you see a message on your productivity screen that says “Battery Saver Active – Start Engine” or “System Off to Save Battery,” your car is telling you that the state of charge is dangerously low. The computer is actively cutting power to non-essential systems to ensure there is enough juice left to start the engine.
If this message appears frequently, even after a long drive, your battery is likely near the end of its life. While it could be a sign of a failing alternator, in a 2016 model, it is most often the battery itself that can no longer maintain the required voltage threshold set by the Body Control Module.
Step-by-Step Guide to Replacing Your 2016 Ford Explorer Battery
Replacing the battery is a straightforward DIY task that can be completed in about 30 minutes. You do not need a shop full of tools, but you do need to follow a specific order of operations to prevent electrical shorts or damage to the vehicle’s computer.
Tools and Safety Gear Required
Before you begin, gather a few basic tools. You will need a 10mm wrench or socket for the terminal nuts and an 8mm or 10mm socket with an extension for the battery hold-down bolt. It is also a good idea to have a wire brush or a dedicated battery terminal cleaner on hand.
Safety is paramount when working with lead-acid batteries. Always wear safety glasses to protect your eyes from potential acid spray and nitrile gloves to keep your hands clean. Ensure you are working in a well-ventilated area, as batteries can release flammable hydrogen gas during the charging and discharging process.
The Removal Process
- Turn off the ignition and remove the key. Ensure all lights and accessories are turned off.
- Locate the battery on the driver’s side of the engine compartment.
- Disconnect the Negative (-) Cable first. This is usually the black cable. Loosen the 10mm nut and wiggle the terminal off. This prevents accidental shorts if your wrench touches the frame while working on the positive side.
- Disconnect the Positive (+) Cable (the red one). Tuck both cables aside so they cannot spring back and touch the posts.
- Unscrew the battery hold-down bolt located at the base of the battery or across the top. Lift the old battery out of the tray. Be careful, as a Group 65 battery can weigh nearly 50 pounds.
Installing the New Unit
- Clean the battery tray of any debris or corrosion using a mixture of baking soda and water if necessary.
- Place the new 2016 ford explorer battery into the tray, ensuring the positive and negative posts are oriented exactly like the old one.
- Reinstall the hold-down bracket and tighten the bolt until the battery is firm and does not move when shaken.
- Connect the Positive (+) Cable first. Tighten the 10mm nut until the terminal cannot be rotated by hand.
- Connect the Negative (-) Cable last. You might see a small spark; this is normal as the vehicle’s capacitors recharge. Tighten the nut securely.
Why You Must Reset the Battery Management System (BMS)
One of the most overlooked steps in modern Ford maintenance is the BMS reset. Your Explorer uses a sensor on the negative battery cable to monitor the age and health of the battery. As a battery gets older, the alternator changes its charging strategy to compensate for the wear.
How the BMS Works
If you install a new battery but do not reset the system, the computer will continue to charge the new unit as if it were the old, failing one. This can lead to overcharging, which significantly shortens the lifespan of your expensive new battery. It can also cause the “Battery Saver” messages to persist even with a fresh unit installed.
The BMS tracks the “days in service” and the “state of charge.” By resetting it, you tell the Powertrain Control Module that a new battery is present. This allows the alternator to return to its “new battery” charging profile, which is more efficient and gentler on the internal components of the battery.
Manual Reset Procedure vs. Using a Scan Tool
The most reliable way to reset the BMS is using an OBD-II scan tool with software like FORScan. However, there is a manual “cheat code” that works on most 2016 Explorers. To do this, get in the car, close the doors, and turn the ignition to “On” (but do not start the engine).
Flash your high beams five times, then press and release the brake pedal three times. If done correctly, the battery light on the dashboard should flash three times within 15 seconds. This confirms the BMS has been reset. If it doesn’t work the first time, turn the car off and try the sequence again with a steady rhythm.
Choosing Between AGM and Standard Lead-Acid Batteries
When you go to the auto parts store, you will likely be offered two choices: a standard flooded lead-acid battery or an Absorbent Glass Mat (AGM) battery. While AGM units are more expensive, they offer several advantages for a modern SUV.
When to Upgrade to AGM
AGM batteries are vibration-resistant and have a much lower self-discharge rate. If you frequently drive off-road or use your Explorer for towing, the added durability of an AGM is worth the investment. They also handle “deep cycling” better, meaning they can recover more easily if you accidentally leave a dome light on overnight.
If your 2016 Explorer is a base model with minimal electronics and you mostly drive on paved roads, a high-quality flooded battery will serve you just fine. However, for those who have added aftermarket accessories like off-road lights, winches, or high-end audio systems, the AGM is the superior choice for consistent voltage delivery.
Maintenance Tips to Extend Battery Life
A little bit of preventative maintenance can extend the life of your battery by a year or more. Most battery failures are caused by heat, vibration, or poor connections. Taking ten minutes every few months to check under the hood can prevent a lot of headaches.
Cleaning Terminal Corrosion
Check your terminals for a white or bluish powdery substance. This is corrosion, and it acts as an insulator, preventing the alternator from fully charging the battery. Use a wire brush and a terminal cleaning solution to keep the metal-to-metal contact points bright and shiny.
After cleaning, you can apply a thin layer of dielectric grease or a dedicated battery terminal protector spray. This creates a barrier against moisture and acid fumes, significantly slowing down the return of corrosion. Ensure the terminals are tight; a loose connection can cause the battery to arc and damage the soft lead posts.
Using a Battery Tender for Seasonal Use
If your Explorer sits for long periods—perhaps it is your dedicated winter vehicle or an off-road toy—the battery will naturally lose its charge. Using a smart battery maintainer or “tender” is a great way to keep the chemistry active. These devices monitor the voltage and provide a tiny “trickle” charge only when needed.
Avoid cheap “dumb” chargers that stay on constantly, as these can boil the electrolyte out of a standard battery. A smart charger will go into a “float mode” once the battery is full, which is the safest way to maintain your 2016 ford explorer battery during the off-season or long vacations.
Frequently Asked Questions About 2016 Ford Explorer Battery
How long should a battery last in a 2016 Ford Explorer?
On average, you can expect a high-quality battery to last between 3 to 5 years. Factors such as extreme heat (which evaporates electrolyte) and extreme cold (which slows chemical reactions) can shorten this lifespan. Frequent short trips where the alternator doesn’t have time to fully recharge the battery also contribute to earlier failure.
Can I jump-start my 2016 Ford Explorer?
Yes, you can jump-start it using a portable jump pack or another vehicle. When doing so, connect the positive cable to the positive terminal of the dead battery, but connect the negative cable to a solid metal ground on the engine block or frame rather than the negative post. This protects the BMS sensor from power surges.
What happens if I don’t reset the BMS?
If you don’t reset the BMS, the vehicle will likely overcharge the new battery. This leads to excessive heat and gassing, which can shorten the battery’s life by up to 50%. You may also continue to see power-saving messages on your dashboard even though the battery is brand new.
Is a Group 65 battery the same as a Group 31?
No, they are different sizes. A Group 65 is the standard automotive size for the Explorer. A Group 31 is much larger and typically used in heavy-duty trucks or marine applications. Always stick to the Group 65 or the specific size listed in your owner’s manual to ensure a proper fit.
Summary of Key Takeaways
Keeping your 2016 Ford Explorer’s electrical system in top shape doesn’t have to be a mystery. By selecting a high-quality Group 65 battery with at least 650 CCA, you ensure your SUV has the “oomph” it needs for any weather. Remember that the installation isn’t finished until you have performed the BMS reset to calibrate the charging system for your new hardware.
Regularly checking for corrosion and ensuring your terminals are tight will go a long way in preventing “no-start” scenarios. If you are a DIYer, this is one of the most rewarding maintenance tasks you can perform, saving you both time and money compared to a dealership visit. Stay safe, keep your connections clean, and enjoy the peace of mind that comes with a healthy charging system!
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