2018 Ford Explorer Battery Size & Group

Quick Answer

For most 2018 Ford Explorer models, here's what you need to know about your battery:

• BCI Group Size: H6/48
• CCA Rating: 760 CCA or higher
• Reserve Capacity: 120-140 minutes
• AGM vs. Flooded: Requires AGM (Absorbed Glass Mat) battery due to the vehicle's advanced electrical system and auto start-stop feature.
• Terminal Layout: Top post, typically DIN (European) style with recessed terminals.
• Physical Dimensions: Approximately 11.0" L x 6.9" W x 7.5" H
• Dual-Battery Setup: Not applicable; the 2018 Ford Explorer uses a single battery.

Replacement Battery Options

When it comes to replacing your 2018 Ford Explorer battery, several reputable brands offer excellent AGM options. Always verify the BCI group size and CCA rating before purchasing. While specific part numbers can change, here are common equivalents:

• Interstate: MTX-48/H6 (or equivalent AGM series)
• Optima: Optima has limited direct fitment for H6/48. While some YellowTop models might work, an H6-specific AGM is generally preferred for optimal fit and performance.
• DieHard: DieHard Platinum AGM H6 (or similar DieHard AGM part number corresponding to BCI Group H6)
• Odyssey: Odyssey Extreme Series H6-760 (or equivalent)
• ACDelco: ACDelco Gold (Professional) AGM BCI Group H6-48AGM

AGM vs. Flooded — Which Does This Vehicle Need?

Your 2018 Ford Explorer, especially if equipped with the auto start-stop feature, requires an AGM battery. Ford designed these vehicles with sophisticated electrical systems that benefit from the stable voltage and deep-cycle capabilities of an AGM battery.

Flooded lead-acid batteries are not recommended for a few key reasons:

• Auto Start-Stop Compatibility: The frequent engine starts and stops put a significant strain on the battery. AGM batteries are built to handle these repeated demanding cycles more efficiently and without premature wear.
• Electrical Load: Modern vehicles like the Explorer have numerous electronic modules and accessories that demand consistent power. AGM batteries provide a more stable power supply.
• Longevity: While typically more expensive upfront, AGM batteries often last longer in these applications, making them a wise investment.

Using a traditional flooded battery in an application designed for AGM can lead to premature battery failure, electrical system issues, and potentially affect the performance of features like auto start-stop.

Post-Installation Relearn / Reset Procedure

After replacing the battery in your 2018 Ford Explorer, it's crucial to perform a Battery Monitoring System (BMS) reset. This procedure allows the vehicle's computer to "relearn" the new battery's charge state and optimize charging, preventing over or undercharging which can shorten battery life.

Here's a common procedure (always refer to your owner's manual or a service professional for the most accurate steps):

1. Ensure all accessories are off and the ignition is in the OFF position.
2. Disconnect the negative battery terminal from the new battery for at least 15 minutes. Some sources suggest longer, up to 1-2 hours for a complete power-down.
3. Reconnect the negative battery terminal. Make sure it