2018 Jeep Wrangler Battery Size

The battery in a 2018 Jeep Wrangler varies depending on the specific vehicle’s engine.
Written by Jason Tushinski
Reviewed by Pat Roache
Your 2018 Jeep Wrangler’s battery size will depend on the engine under the hood. Since most 2018 Wranglers feature a 3.6-liter V6 engine, you’ll likely have either an Optima H6 or H7 Yellowtop battery or a DieHard Platinum AGM battery.
The 2018 Jeep Wrangler is a force of off-roading nature, with its rugged character and capability, powerful V6 engine, and oodles of customization options. That said, that V6 doesn’t do all the work by itself—a capable battery is vital to start your Wrangler and to ensure its electrical components work as they should. Teamwork!
, the
car insurance
super app, has put together this handy article to help you understand your Wrangler’s battery size, as well as the battery options available for a 2018 Wrangler. We’ll also give you some tips on how to save on
Jeep Wrangler car insurance costs
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How big is a 2018 Jeep Wrangler battery? 

Every 2018 Wrangler won’t necessarily be equipped with the same engine. As a result, variations in cold cranking amps (CCA) are common.
While the 2018 Jeep Wrangler was almost exclusively equipped with a 3.6-liter V6 engine, there was some variety in the batteries that work with this rig:
  • DieHard Platinum AGM Battery: H7 Group Size, 850 CCA
  • DieHard Platinum AGM Battery: H6 Group Size, 760 CCA
  • Optima Yellow Top Battery: H6 Group Size, 800 CCA
  • DieHard Platinum AGM Battery: AUX14 Group Size, 200 CCA
  • Optima Yellow Top Battery: H7 Group Size, 880 CCA
All 2018 Jeep Wranglers were also available with a turbocharged 2.0-liter four-cylinder engine, which can pair with the following batteries:
  • Optima AGM Yellow Top Battery: DH6 Group Size H6/LN3 800 CCA
  • Optima AGM Yellow Top Battery: DH7 Group Size 7 880 CCA
  • Duralast Platinum AGM Battery: H7-AGM Group Size 94R 850 CCA
  • Duralast Platinum AGM Battery: H6-AGM Group Size 48 760 CCA
  • Duralast Platinum AGM Auxiliary Battery: AUX14
If you’re not sure which battery fits with your 2018 Jeep Wrangler, check your owner’s manual, or open up the hood to see what the label says on the battery itself. If you still aren’t sure, give your Jeep dealership a call.
Remember, you’re able to use batteries of different sizes, so long as they are compatible with your Wrangler and that the battery meets your needs. Check out a truster auto parts store, such as
Advance Auto Parts
, for its recommendation for a 2018 Jeep Wrangler battery.

2018 Jeep Wrangler battery life 

In gas-powered vehicles, batteries are designed to be charged by the engine itself. So long as your 2018 Jeep Wrangler’s engine is working as it should, it will recharge your battery as you drive.
That said, sometimes batteries need to be replaced. Most car experts concur that batteries should be swapped out every four to five years. You might have to replace your battery earlier if you drive a lot, or if the temperature at which you store your Wrangler is quite hot.
As a general rule, you should regularly test your Jeep’s battery to ensure you won’t be stranded by a failed battery far from home. Keep an eye out for any signs indicating battery failure, such as:
  • Clicking sound when starting your Jeep
  • Visible corrosion on the battery
  • You frequently need to
    jumpstart a dead battery
  • Your Jeep’s lights aren’t as bright as usual

How to keep your 2018 Jeep Wrangler battery healthy

Along with testing your battery, there are some other steps you can take to ensure your Wrangler’s battery stays in tip-top shape for as long as possible, including:
  • Start your battery continuously: Allowing your Wrangler to sit unused for long periods means its battery isn’t getting any power!
  • Make sure the battery is securely fastened: Road vibrations can loosen the battery’s connections and batter its components.
  • Store your Wrangler indoors: Keeping your Jeep away from extreme swings in temperature is vital to ensuring battery health. Store it in a cool, secure garage if possible.
  • Battery terminals: If you see corrosion building up on your battery terminals, give them a cleaning with a wire brush and cleaning solution.

How to save on 2018 Jeep Wrangler insurance

Replacing the battery
on a 2018 Jeep Wrangler isn’t cheap—it can set you back a few hundred dollars. But protecting your Jeep from all sorts of bad outcomes doesn’t need to be expensive—not when you use
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