2022 Jeep Gladiator Battery Size & Group

Quick Answer

• BCI Group Size: H7/94R
• CCA Rating: 800 CCA (minimum recommended)
• Reserve Capacity: 140-160 minutes
• AGM vs. Flooded: AGM recommended (especially for equipped with ESS/auto start-stop)
• Terminal Layout: Top Post, positive on left
• Physical Dimensions (approximate): 12.4" L x 6.9" W x 7.5" H
• Dual-Battery Setup: Not standard for gasoline models; see "Common Battery Issues" for an auxiliary battery.

Replacement Battery Options

Here are some popular replacement options for your 2022 Jeep Gladiator. Always verify fitment and specifications before purchase.

• Interstate: MTZ-94R/H7 (AGM) or MTP-94R/H7 (Flooded)
• Optima: DH7 YellowTop (AGM)
• DieHard: Platinum AGM H7 (AGM)
• Odyssey: ODX-AGM94R H7 L3 (AGM)
• ACDelco: 94RAGM (AGM)

AGM vs. Flooded — Which Does This Vehicle Need?

The 2022 Jeep Gladiator, particularly models equipped with the Engine Stop-Start (ESS) system (also known as auto start-stop), is designed to use an Absorbent Glass Mat (AGM) battery. While a traditional flooded lead-acid battery may physically fit and provide power, it is generally not recommended as a long-term solution, especially if your vehicle has ESS.

AGM batteries are better suited for the demands of modern vehicles with ESS because they can handle the frequent discharge and recharge cycles without significant degradation. The ESS system places a higher demand on the battery as it constantly cycles the engine on and off, requiring a battery that can recover quickly. Flooded batteries can wear out much faster under these conditions.

For Gladiators without ESS, a high-quality flooded battery might suffice, but an AGM battery still offers superior performance, longer life, and greater resistance to vibration and extreme temperatures – all beneficial for an off-road capable vehicle like the Gladiator.

Post-Installation Relearn / Reset Procedure

After replacing the battery in your 2022 Jeep Gladiator, it's important to perform a simple reset procedure to ensure all electronic systems function correctly and the Battery Monitoring System (BMS) accurately reflects the new battery's state of charge.

1. Install the new battery: Ensure terminals are clean and connections are secure.
2. Close all doors, hood, and liftgate.
3. Turn the ignition to the "OFF" position.
4. Wait approximately 10 minutes: This allows the vehicle's modules to power down completely.
5. Start the engine: Drive the vehicle for at least 10-15 minutes, allowing the computer to relearn. During this time, the ESS may not function immediately as the BMS calibrates.

Important Note for ESS-equipped vehicles: The ESS system typically has an auxiliary battery (a smaller, secondary battery located under the main battery tray) that solely supports the ESS function. If your ESS system is not working after a main battery replacement, and you've followed the above procedure, it might indicate an issue with the auxiliary battery, which also needs adequate charge and proper functioning for ESS to engage.

Signs of a Failing Battery

Recognizing the signs of a dying battery can save you from being stranded. Here are common indicators:

• Slow Engine Crank: The most common sign. If your engine cranks slowly or struggles to turn over, the battery is likely weak.
• Clicking Sound: A rapid clicking sound when you turn the key (or push the start button) often indicates insufficient power to engage the starter motor.
• Dim Headlights or Interior Lights: Especially noticeable when the engine is off or just starting.
• Check Engine Light / Battery Warning Light: Modern vehicles may illuminate a warning light on the dashboard if the battery is failing or the charging system has an issue.
• Electronic Issues: Malfunctioning infotainment systems, power windows, or other electrical accessories can sometimes be attributed to low battery voltage.
• Corrosion on Terminals: White or bluish powdery substance around the battery terminals can indicate a poor connection or a leaking battery.
• Swollen Battery Case: A bulging or swollen battery case is a serious sign of internal damage and indicates the battery should be replaced immediately.
• Frequent ESS Malfunctions: If your auto start-stop system frequently fails to activate, even when all conditions are met, it could be a sign that either the main or auxiliary battery is nearing the end of its life.

Common Battery Issues for This Generation

The 2022 Jeep Gladiator shares many components with the Wrangler JL, and thus can experience similar battery-related issues:

• Engine Stop-Start (ESS) Auxiliary Battery: The auxiliary battery, integral to the ESS system, often has a shorter lifespan than the main battery due to its location and constant cycling. Many owners experience issues with the ESS system failing before the main battery shows signs of weakness. It's important to test both batteries if your ESS system is malfunctioning.
• Parasitic Draws: Aftermarket accessories (winches, light bars, upgraded audio) or even a fault in an OEM module can lead to parasitic draws, slowly draining the battery when the vehicle is off. This can result in a dead battery after sitting for a few days.
• Location and Heat: The battery in the Gladiator is located under the hood, subjecting it to heat, which can accelerate battery degradation, especially in warmer climates.
• Off-Road Demands: Heavy off-road use, especially with winching or numerous auxiliary lights, can put a significant strain on the charging system and battery. Upgrading to a higher CCA/RC AGM battery is often beneficial for serious off-roaders.

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