Most car owners rarely think about the number of batteries in their vehicles until there’s a problem. If you own or are considering a 2020 Jeep Cherokee, you may wonder how many batteries it uses, where they are, and why that matters.
The answer is not always as simple as “one.” Modern vehicles have new technology, and sometimes, extra batteries are hidden from view.
Understanding your Cherokee’s battery setup will help you avoid surprises, especially if you plan to handle maintenance yourself or face an unexpected breakdown.
The Main Battery In A 2020 Jeep Cherokee
Almost all 2020 Jeep Cherokee models use a single main battery. This battery sits under the hood, on the driver’s side, close to the engine. Its main job is to start the engine and power the vehicle’s electrical systems when the engine is off.
The standard battery is a 12-volt lead-acid battery. Most trims—including Latitude, Limited, and Trailhawk—use a Group 48/H6 size. This battery type is common in midsize SUVs. It provides enough power for normal driving and accessories like lights, radio, and navigation.
Main Battery Specs
| Specification | Details |
|---|---|
| Type | 12V Lead-Acid |
| Group Size | 48/H6 |
| Cold Cranking Amps (CCA) | 600–730 |
| Location | Under Hood (Driver Side) |
When replacing your battery, always match the group size and CCA rating. Using the wrong type can cause electrical problems.
Is There A Second Battery?
Some 2020 Jeep Cherokees come with Start-Stop technology. This feature turns off the engine at stops to save fuel. Vehicles with Start-Stop often use a second, smaller battery called an auxiliary battery.
Auxiliary Battery Role
The auxiliary battery is also 12V, but it’s smaller (often Group 400 or Group 401). Its job is to keep important systems running when the main battery focuses on restarting the engine. The auxiliary battery supports:
- Power steering
- Infotainment and radio
- Headlights and safety systems
Where Is The Auxiliary Battery?
In Cherokees equipped with Start-Stop, the auxiliary battery is usually found below the main battery—you’ll need to remove the main battery to reach it. This location can surprise DIY mechanics, making battery changes harder than expected.
How To Know If You Have Two Batteries
Not all 2020 Cherokees have the auxiliary battery. Here’s how to check:
- Look for a Start-Stop button or symbol on your dashboard.
- Check your owner’s manual for “dual battery” or “auxiliary battery.”
- Ask your dealer or a trusted mechanic.
If your Cherokee doesn’t have Start-Stop, you likely have just one battery.
Quick Comparison: Single Vs. Dual Battery Setup
Here’s a simple comparison to help you understand the differences:
| Feature | Single Battery | Dual Battery |
|---|---|---|
| Number of Batteries | 1 | 2 |
| Start-Stop System | No | Yes |
| Battery Replacement Cost | Lower | Higher |
| Battery Location | Under Hood | Under Hood (stacked) |
Common Battery Questions For The 2020 Jeep Cherokee
Many drivers have questions about their Cherokee’s battery setup. Here are practical answers to the most common concerns.
How Long Do Cherokee Batteries Last?
Main batteries usually last 3–5 years. The auxiliary battery may wear out faster because it charges and discharges more often. If your Cherokee has Start-Stop, expect the auxiliary battery to need replacement every 2–4 years.
How To Tell If A Battery Is Failing
Typical signs include:
- Slow engine start
- Flickering lights
- Start-Stop system errors
- Infotainment resets
If you see these problems, have both batteries tested—even if you think only one is the problem.
Can I Replace The Batteries Myself?
You can replace the main battery, but the auxiliary battery is harder to reach. It’s stacked below the main one, and removing both requires care. You may need to reset the Start-Stop system after installation. If you’re not confident, a trusted mechanic is the safer choice.
Special Tips Most Owners Miss
- Battery registration: Some replacement batteries need to be “registered” with the car’s computer. Skipping this step can affect battery life and Start-Stop function.
- Parasitic drain: Even when off, some Cherokee systems keep running, slowly draining the battery. If your car sits unused for weeks, use a battery maintainer.
- Check for recalls: Occasionally, battery issues lead to recalls. Always check your VIN for any open battery-related recalls.
Battery Care And Maintenance
To keep your 2020 Jeep Cherokee’s batteries in top shape:
- Inspect battery terminals for corrosion every 6 months.
- Clean off white or green build-up with a battery brush and baking soda solution.
- Make sure battery hold-downs are tight so vibrations don’t shorten battery life.
- If you use Start-Stop often, check the auxiliary battery’s charge during regular service visits.
These small steps can prevent breakdowns and extend battery life.
Cost To Replace Batteries
Replacing a main battery costs around $150–$250 depending on brand and labor. The auxiliary battery is smaller but costs about $100–$200 due to the extra labor. Some dealers charge more for both batteries together, especially if the Start-Stop system needs to be reset.
Summary Table: 2020 Jeep Cherokee Battery Details
| Battery Type | Size | Vehicles Equipped | Replacement Cost | Average Lifespan |
|---|---|---|---|---|
| Main | Group 48/H6 | All trims | $150–$250 | 3–5 years |
| Auxiliary | Group 400/401 | With Start-Stop | $100–$200 | 2–4 years |
Final Thoughts
For the 2020 Jeep Cherokee, most owners will have one main battery. If your model uses Start-Stop technology, you’ll have two batteries—a main and an auxiliary. Checking your trim and features will confirm your setup. Understanding these details will help you avoid common mistakes, save money on repairs, and keep your Cherokee running smoothly for years. For more technical details, you can refer to the official Jeep Owner’s Manual.
Frequently Asked Questions
How Many Batteries Does A 2020 Jeep Cherokee Have?
Most have one battery. If your Cherokee has Start-Stop technology, it will have two batteries: a main and an auxiliary.
Where Is The Battery Located In A 2020 Jeep Cherokee?
The main battery sits under the hood on the driver’s side. If there’s an auxiliary battery, it’s stacked directly below the main battery.
How Do I Know If My Cherokee Has An Auxiliary Battery?
Check for a Start-Stop button or indicator on your dashboard. You can also look in your owner’s manual or ask your dealer.
How Much Does It Cost To Replace Both Batteries?
Replacing both usually costs $250–$450 depending on labor and battery brand.
Is It Safe To Replace The Batteries Myself?
You can replace the main battery with basic tools. Replacing the auxiliary battery is harder and may need a system reset—consider professional help if unsure.
