2019 Jeep Cherokee Battery Size & Group

Quick Answer

• BCI Group Size: H6/48
• CCA Rating: 700-760 CCA (varies by engine and manufacturer)
• Reserve Capacity: 120-140 minutes
• AGM vs. Flooded: AGM (recommended for improved start/stop system performance and longevity)
• Terminal Layout: Top Post (positive on right)
• Physical Dimensions: Approximately 11.0" L x 6.9" W x 6.9" H
• Dual-Battery Setup: Not applicable (gasoline engine)

Replacement Battery Options

• Interstate: MTX-48/H6 (AGM) or MTP-48/H6 (Flooded)
• Optima: H6 (48) YELLOWTOP (AGM)
• DieHard: Platinum AGM H6/Group 48 (AGM)
• Odyssey: ODP-AGM48 H6 (AGM)
• ACDelco: 48AGM (AGM)

AGM vs. Flooded — Which Does This Vehicle Need?

The 2019 Jeep Cherokee, especially models equipped with the start/stop technology, is designed to utilize an Absorbent Glass Mat (AGM) battery. While a traditional flooded lead-acid battery might fit physically, it's not recommended for several reasons. AGM batteries are built to handle the frequent charging and discharging cycles associated with start/stop systems much better than flooded batteries. Using a flooded battery in a vehicle designed for AGM can lead to premature battery failure, reduced performance of the start/stop system, and potentially even electronic issues due to unstable voltage. AGM batteries also offer a longer lifespan, better resistance to vibration, and are spill-proof, making them a superior choice for modern vehicles.

Post-Installation Relearn / Reset Procedure

After replacing the battery in your 2019 Jeep Cherokee, it's crucial to perform a simple reset or relearn procedure to ensure all systems function correctly:

1. Initial Power Up: Connect the new battery, ensuring the terminals are secure and correctly oriented (positive to positive, negative to negative).
2. Ignition Cycle: Turn the ignition to the "ON" position (without starting the engine) for about 30 seconds. Then turn it "OFF." Repeat this cycle a few times.
3. Window Relearn: The automatic-up/down feature for the power windows may need recalibration. Roll each window down completely, then roll it up completely, holding the switch for 2-3 seconds at the top and bottom of the travel.
4. Radio/Navigation: Your radio presets and navigation system might need to be reconfigured. Some vehicles may require a security code for the radio; refer to your owner's manual for specific instructions.
5. Drive Cycle: Drive the vehicle for a short period (15-20 minutes) to allow the engine control module (ECM) and other systems to re-learn various parameters, such as idle speed and transmission shift points. You may notice slightly erratic idle or shifting initially, which should resolve itself.
6. Check for Warning Lights: If any warning lights persist after the drive cycle, it's advisable to have the vehicle scanned for diagnostic trouble codes (DTCs) by a qualified technician.

Signs of a Failing Battery

Recognizing the signs of a failing battery can save you from being stranded. Look out for the following:

• Slow Engine Crank: The most common sign. The engine turns over slowly when you try to start the car, indicating the battery isn't providing enough power.
• Dim Headlights or Interior Lights: If your lights appear dim when the engine is off but brighten once the engine is running, your battery is likely weak.
• Warning Light: A battery warning light on your dashboard is a clear indicator of a charging system or battery issue.
• Corrosion on Terminals: White or bluish powdery substance around the battery terminals can indicate a leak and poor connection, which can hinder performance.
• Bloated or Swollen Battery Case: This is a sign of internal damage and can be dangerous. Replace the battery immediately.
• Foul Odor: A "rotten egg" smell near the battery indicates a leak of battery acid or overcharging.
• Frequent Start/Stop System Malfunctions: If your start/stop system is not engaging as it should, or frequently disables itself, a failing AGM battery can be the cause.

Common Battery Issues for This Generation

For the 2019 Jeep Cherokee, especially those with the 2.4L "Tigershark" engine or the 3.2L Pentastar V6, battery issues often revolve around the demands of modern electronics and the start/stop system.

• Premature AGM Battery Failure (if not properly maintained): While AGM batteries are robust, they can still fail prematurely if subjected to frequent deep discharges, especially in cold climates. Short trips that don't allow the battery to fully recharge can contribute to this.
• Parasitic Draws: These vehicles have numerous electronic modules that can remain active even when the vehicle is off, leading to a slow but steady drain on the battery. Diagnosing a parasitic draw often requires specialized tools and expertise.
• Start/Stop System Discrepancies: Owners often report the start/stop system not engaging consistently. While this can sometimes be a sign of a failing battery, it can also be due to various other factors that inhibit its operation (e.g., HVAC settings, engine temperature, hood open, seatbelt unbuckled). However, a weakening battery is a prime suspect.
• Corrosion: Even with sealed AGM batteries, terminal corrosion can still occur, leading to poor connections and reduced charging efficiency.

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