Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Jeep WranglerBattery Location & Size
OEM battery spec from the factory service manual for the JL (2018-2024) (2018-2024).
Quick Answer
Location
Under passenger seat
Battery Size
Group 48 (H6)
CCA Rating
730 CCA
Type
AGM required
Difficulty: Moderate — 25 min
Notes
- →Must remove passenger seat to access battery
- →Seat bolts are 18mm
- →AGM battery is mandatory
Source: Factory service manual — 2018 Jeep Wrangler JL (2018-2024).
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The spec is above. This opens the 2018 Jeep factory books so you can go into the Wrangler procedure.
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Frequently Asked Questions
- Where is the battery in a 2018 Jeep Wrangler?
- The 2018 Jeep Wrangler battery is located under passenger seat.
- What size battery does a 2018 Jeep Wrangler take?
- The 2018 Jeep Wrangler uses a Group 48 (H6) battery with at least 730 CCA.
- How hard is it to replace the battery on a 2018 Jeep Wrangler?
- Battery replacement is rated as moderate — 25 min.