Jeep Wrangler Battery Size

There are five different Jeep Wrangler battery sizes—knowing your model year, configuration, and battery group code will help you find the right size faster.
Written by Sarah Williams
Reviewed by Brittni Brinn
Your Jeep Wrangler battery size depends on its model year and configuration, but it will be one of five different sizes ranging from 10 1/16" x 7 3/16" x 6 15/16" to 12 3/8" x 6 7/8" x 7 1/2". Identifying the battery group code will help you find your Wrangler battery faster. 
Before selecting your next battery, it’s important to research the exact size needed for your model year and configuration. Without the correct battery size, your Wrangler’s performance and safety are at risk.  
Here to help you find the right size battery for your Jeep Wrangler is
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savings. We’ll go over battery sizes, group codes, and lifespan—plus how you can cut back your
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How big is a Jeep Wrangler battery? 

Your Jeep Wrangler battery size depends on its year and configuration. There are five different options: 
  • 12 3/8" x 6 7/8" x 7 1/2"
  • 12 1/16" x 6 7/8" x 7 9/16"
  • 10 1/4" x 6 13/16" x 7 7/8"
  • 10 1/16" x 7 3/16" x 6 15/16"
  • 10" x 6 1/16" x 8 3/8"
Installing the correct Wrangler battery size is not only a matter of performance but of safety. Because every vehicle requires different amounts of power to run properly, if your battery is too small, your car won’t start. On the other hand, if the battery is too large, you risk fire and other hazards. 
To find the correct battery size(s) for your Jeep Wrangler, check out the table below: 
Battery group code
Length x Width x Height
Model year(s)
H7
12 3/8" x 6 7/8" x 7 1/2"
2018, 2019, 2020
H6
12 1/16" x 6 7/8" x 7 9/16"
2012–2020
34/78
10 1/4" x 6 13/16" x 7 7/8"
1997–1999, 2002–2011
34
10 1/4" x 6 13/16" x 7 7/8"
1998–2001
58
10 1/16" x 7 3/16" x 6 15/16"
1989–1995
56
10" x 6 1/16" x 8 3/8"
1989, 1990
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The 2018, 2019, and 2020 Jeep Wrangler battery sizes depend on if your Jeep has Start-Stop. With Start-Stop, the battery will be battery group code H6, measuring 12 1/16" x 6 7/8" x 7 9/16". Without it, you’ll have a slightly larger battery measuring 12 3/8" x 6 7/8" x 7 1/2", with group code H7
Every other year with two battery size options will vary based on configuration. Check out your Jeep Wrangler owner's manual to confirm the exact battery size for your Wrangler trim. 

Jeep Wrangler battery group code 

What exactly is a battery group code? It’s the industry standard categorization for battery sizes. Rather than sifting through a long list of measurements, battery codes allow you to search for the correct battery size much faster. If you’re looking for a new battery, it’s worth finding out which battery group you’re looking for.
The Jeep Wrangler has six possible battery group codes: H7, H6, 34/78, 34, 58, or 56. See the chart above to determine your Wrangler battery group code. 

Jeep Wrangler battery lifespan

How often should you change your Jeep Wrangler battery? Most car batteries will function at full capacity for around three years. That may seem short—and you’re right. You can usually squeeze a lot more life out of your battery, but unfortunately, you’ll probably notice a dip in your battery’s performance after three years. 
Keep an eye out for these signs that it’s time to change your Wrangler battery:
  • You’re having difficulty starting your car
  • The Check Engine light is on 
  • There’s a foul smell (like rotten eggs)
  • Electrical issues (like unresponsive power windows)
  • Dim headlights
  • Struggling in cold temperatures
If your Wrangler has any of these problems, it may be time for a new battery! 

How to save on Jeep Wrangler insurance

Buying the correct battery size for your Jeep Wrangler is one way to avoid unexpected repair bills. Regular insurance maintenance is another way to keep your Wrangler costs down.
Comparing insurance quotes can be a lot of work. Not only do you have to input your information over and over to get a fair comparison (each insurer calculates your rates differently!), but even once you have your quotes, it can feel like comparing apples to oranges. 
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