2020 Jeep Cherokee Battery: Group Size, CCA, and Replacement Guide

Quick answer

• BCI Group Size: H6/48
• CCA Rating: 700-800 CCA (varies by specific model/engine)
• Reserve Capacity: 120-140 minutes
• AGM vs. Flooded: Requires AGM battery due to Stop/Start technology.
• Terminal Layout: Top post, typically positive on the right (facing the battery from the front of the vehicle).
• Physical Dimensions: (Approximate) 11.0" L x 6.9" W x 7.5" H
• Dual-Battery Setup: Not applicable for the gasoline 2020 Jeep Cherokee.

Replacement battery options

Finding the right replacement battery for your 2020 Jeep Cherokee is crucial for reliable performance, especially given its Stop/Start system. Here are some popular options:

• Interstate: MTX-48 / H6 (AGM)
• Optima: H6 (AGM) - generally part number 8027-127 (YellowTop H6)
• DieHard: Platinum AGM H6
• Odyssey: H6-700 / 48-770 (AGM)
• ACDelco: 48AGM (AGM)

AGM vs. flooded — which does this vehicle need?

The 2020 Jeep Cherokee comes equipped with an Automatic Stop/Start (ESS) system. This system places significantly higher demands on the battery than traditional vehicles. For this reason, your 2020 Jeep Cherokee requires an AGM (Absorbent Glass Mat) battery. Using a traditional flooded lead-acid battery will lead to premature failure and potential issues with the Stop/Start system operation. AGM batteries are designed to handle the frequent cycling (discharging and recharging) associated with Stop/Start technology, offering better durability and a longer lifespan in this application.

Post-installation relearn / reset procedure

After replacing the battery in your 2020 Jeep Cherokee, it's important to follow a few steps to ensure all systems reset properly. While specific procedures can vary slightly, a general process involves:

1. Install the new battery: Ensure terminals are clean and connections are secure.
2. Idle Relearn: Start the engine and let it idle for 5-10 minutes without touching the accelerator. This allows the Powertrain Control Module (PCM) to re-learn idle parameters.
3. Drive Cycle: Drive the vehicle for a short period (10-15 minutes) under varying conditions (city and highway driving, if possible). This helps other modules, like the Transmission Control Module (TCM), re-learn their operating parameters.
4. Window Express Up/Down Reset (if applicable): If your windows have an express up/down feature and it's not working, you may need to reset them. Typically, this involves holding the window switch down until the window is fully open, then holding it up until it's fully closed, and continuing to hold for a few additional seconds at both ends of the travel.
5. Radio/Navigation Settings: You may need to re-enter radio presets, navigation favorites, and other personalized settings.
6. Automatic Stop/Start (ESS) System: The ESS system may take some time to re-enable after a battery replacement as it needs to self-calibrate and confirm the new battery's state of charge and health. This can sometimes take a few drive cycles.

If you experience persistent warning lights or issues after a battery replacement, it's best to consult your owner's manual or visit a trusted service center.

Signs of a failing battery

Catching a failing battery early can save you from being stranded. Look out for these common signs:

• Slow Cranking: The engine turns over sluggishly when you try to start it.
• Dim Headlights/Interior Lights: Especially noticeable when the engine is off or just starting.
• Warning Lights: A battery warning light on your dashboard.
• Clicking Sound: A rapid clicking sound when trying to start, indicating insufficient power to engage the starter.
• Corrosion: Visible corrosion around the battery terminals.
• Swollen Battery Case: The battery case appears bloated or misshapen, often a sign of overheating or overcharging.
• Frequent Stop/Start Malfunctions: The ESS system may not engage as often or display fault messages.

Common battery issues for this generation

For the 2020 Jeep Cherokee, especially considering its Stop/Start system, several battery-related issues are more prevalent:

• Premature Battery Failure with Incorrect Battery Type: As mentioned, using a non-AGM battery will significantly shorten its lifespan due to the demands of the Stop/Start system.
• ESS System Malfunctions: A weak or failing battery is often the primary cause of the Automatic Stop/Start system not working correctly. The system requires a robust battery to function as designed.
• Parasitic Draws: While not unique to the Cherokee, complex modern vehicles can sometimes have modules that draw power even when the vehicle is off, leading to a drained battery over time if not driven regularly.
• Sensitivity to Cold Weather: All batteries perform less efficiently in cold weather, but a marginal battery will show its weakness more quickly in freezing temperatures, leading to no-start situations.

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