2020 Ford Ranger Battery Size & Group

Quick Answer

• BCI Group Size: H6/48
• CCA Rating: 760 CCA (minimum)
• Reserve Capacity: 140-150 minutes (minimum)
• AGM vs. Flooded: AGM recommended (originally equipped with AGM, crucial for modern vehicle electronics)
• Terminal Layout: Top Post; Positive on Right (when viewed from front of vehicle looking at terminals)
• Physical Dimensions: 11.1" L x 6.9" W x 6.9" H (approximate)
• Dual-Battery Setup: Not applicable (not a diesel model)

Replacement Battery Options

While specific part numbers can vary by retailer and availability, here are common options from popular brands that fit the 2020 Ford Ranger. Always double-check with the retailer for the exact fitment and latest part numbers.

• Interstate: MTX-48 / H6 (AGM Deep Cycle)
• Optima: DH6 YellowTop (AGM)
• DieHard: Platinum AGM Group 48 (H6)
• Odyssey: 48-770 (AGM)
• ACDelco: ACDelco Gold 48AGM (AGM)

AGM vs. Flooded – Which Does This Vehicle Need?

The 2020 Ford Ranger, like many modern vehicles, comes equipped from the factory with an Absorbent Glass Mat (AGM) battery. It is highly recommended to replace it with another AGM battery. Here's why:

Modern vehicles are equipped with sophisticated electrical systems, including start-stop technology, numerous electronic control units (ECUs), and a multitude of sensors and accessories. AGM batteries are designed to handle the higher electrical demands and frequent discharge/recharge cycles associated with these systems much better than traditional flooded lead-acid batteries.

Using a flooded battery in a vehicle designed for AGM can lead to several problems:

• Reduced Battery Lifespan: Flooded batteries will degrade much faster under the strenuous demands of a modern vehicle's electrical system.
• System Malfunctions: Inadequate power delivery can cause issues with start-stop systems, infotainment, and other electronic components.
• Warranty Issues: Some manufacturers may void warranty claims related to electrical systems if a non-OEM specified battery type is used.

Therefore, to ensure optimal performance, longevity, and to avoid electrical issues, always opt for a high-quality AGM battery for your 2020 Ford Ranger.

Post-Installation Relearn / Reset Procedure

After replacing the battery in your 2020 Ford Ranger, it's crucial to perform a Battery Monitoring System (BMS) reset. This procedure informs the vehicle's computer that a new battery has been installed, allowing it to accurately monitor the battery's state of charge and adjust its charging strategy accordingly. Failing to do so can result in overcharging or undercharging, leading to premature battery failure and potential electrical issues.

While the exact procedure can sometimes vary slightly, a common method involves:

1. Ensure the vehicle is off and all accessories are off.
2. Turn the ignition to the "ON" position (without starting the engine).
3. Flash the high beams 5 times.
4. Press the brake pedal 3 times.

This sequence should be performed within 10 seconds. You may or may not receive a confirmation message on the dash. Some Rangers might require a scan tool to perform the BMS reset. If you are unsure or the manual method doesn't seem to work, it is best to consult your owner's manual or visit a Ford dealership or qualified technician.

Signs of a Failing Battery

Recognizing the signs of a failing battery can save you from being stranded. Keep an eye out for these common indicators:

• Slow Engine Crank: The engine turns over sluggishly when you try to start it. This is often the most obvious sign.
• Dim Headlights or Interior Lights: Especially noticeable when the engine is off or just starting.
• Warning Lights: A battery or charging system warning light illuminates on your dashboard.
• Corrosion on Terminals: White or blue powdery substance around the battery terminals can indicate a poor connection or acid leakage.
• Bloated or Swollen Battery Case: This can be a sign of internal damage or overheating, and the battery should be replaced immediately.
• Electrical Gremlins: Inconsistent operation of accessories, power windows, or infotainment can sometimes be traced back to a weak battery.
• Age: Most automotive batteries last 3-5 years. If your battery is in this age range, it's wise to have it tested, especially if you experience any of the above symptoms.

Common Battery Issues for This Generation

The 2020 Ford Ranger, generally speaking, is known for a reliable electrical system. However, like any modern vehicle, certain factors can contribute to battery issues:

• Short Commutes: Frequent short drives where the engine doesn't run long enough to fully recharge the battery can lead to premature battery degradation.
• Accessory Drain: Leaving accessories like lights, infotainment, or charging devices on without the engine running for extended periods can drain the battery.
• Parasitic Draws: Although less common with newer vehicles, an undetected electrical component continually drawing power when the vehicle is off can slowly drain the battery. Diagnosing parasitic draws often requires specialized equipment and expertise.
• Extreme Temperatures: Both extreme heat and extreme cold can reduce battery life and performance. Hot climates specifically can accelerate the chemical reactions within the battery, leading to faster degradation.
• Failure to Perform BMS Reset: As mentioned earlier, not resetting the Battery Monitoring System after a battery replacement can lead to improper charging and a shortened lifespan for the new battery.

Regular battery testing and maintenance, especially as the battery approaches the 3-year mark, can help prevent unexpected failures.

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