2018–2025 JL (3rd generation)
2018–2025 Jeep Wrangler Battery Size (BCI Group and CCA)
The 2018–2025 Jeep Wrangler uses a BCI group 48 (H6) with stop-start-equipped engines; 94R (H7) on engines without stop-start battery. AGM is required, not optional. Fitment, replacement notes, and what to check before you buy.
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2018–2025 Jeep Wrangler battery specifications
Check your manual| Spec | Value |
|---|---|
| BCI group size | 48 (H6) with stop-start-equipped engines; 94R (H7) on engines without stop-start |
| Battery type | AGM |
| AGM required | Yes |
| Location | Engine bay, driver side (except 4xe. See hybrid engine entry for its separate 12V/HV setup) |
JL moved from the JK's flooded Group 34 to a larger AGM battery. Which group fits depends on whether the specific engine/trim has engine stop-start. Confirm before ordering a replacement.
3.6L V6 (Pentastar, +eTorque mild hybrid on some trims/years) battery
Check your manual| Spec | Value |
|---|---|
| BCI group size | 48 (H6) base 12V; eTorque adds a separate 48V lithium-ion battery pack under the front passenger seat |
| Battery type | AGM |
eTorque (belt-starter-generator mild hybrid) was optional on Sahara/Rubicon starting roughly 2020 and was dropped from the lineup around the 2024 model year. Check the build sheet, since it changes the battery layout (adds the 48V pack) even though engine oil/filter specs are identical to the non-eTorque 3.6L.
4xe Plug-In Hybrid (2.0L Turbo I4 + electric motor) battery
High confidence| Spec | Value |
|---|---|
| BCI group size | High-voltage traction pack (~17 kWh, liquid-cooled) under the rear seat/cargo floor, PLUS a separate 12V accessory battery (Group 48/H6 or 94R/H7 footprint. Confirm before ordering) |
See the 2023 HV battery fire recall (23V-787) in Common Problems. Affected vehicles get a software flash and, if a fault code sets, a pack replacement. EPA-rated 21–22 mi electric-only range and 49 MPGe combined; roughly 20 mpg combined running on gas alone once the HV battery is depleted.
Which Jeep Wrangler model years does this cover?
These battery specifications apply to every Jeep Wrangler built from 2018 through 2025 — the JL (3rd generation), off-road suv, solid front/rear axle (2-door; 4-door unlimited). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.
What changed during the 2018–2025 Jeep Wrangler
- 2018JL launch; note that some dealers/titles carried over 'Wrangler JK' badging into 2018 for leftover previous-generation stock, a 2018-titled Wrangler may mechanically be a JK. Confirm by VIN/generation, not just model year.
- 2019eTorque mild hybrid introduced as an option on the 2.0L turbo
- 20203.0L EcoDiesel V6 added; eTorque became optional on the 3.6L V6
- 20214xe plug-in hybrid and Rubicon 392 (6.4L V8) both launch
- 2022New High Tide and Beach special editions added; minor equipment shuffling across trims; 4xe becomes the only Wrangler variant offered in Europe
- 2023Air conditioning becomes standard on all trims; Uconnect 4 replaces Uconnect 3 with a 7-in touchscreen standard (up from 5-in); Rubicon 20th Anniversary special edition
- 2024eTorque dropped from the lineup entirely
- 20253.6L V6 automatic reportedly phased toward manual-only on some trims as Jeep leans further into the 2.0L turbo and 4xe; verify current-year trim/engine availability before ordering parts
2018–2025 Jeep Wrangler battery: common questions
What size battery does a 2018–2025 Jeep Wrangler take?
- BCI group 48 (H6) with stop-start-equipped engines; 94R (H7) on engines without stop-start. Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side.
Does the 2018–2025 Jeep Wrangler need an AGM battery?
- Yes. This vehicle requires AGM, not flooded. A flooded battery in a start-stop system is cycled far harder than it is designed for and fails early.
Where is the battery on a 2018–2025 Jeep Wrangler?
- Engine bay, driver side (except 4xe. See hybrid engine entry for its separate 12V/HV setup).
Does a 2018–2025 Jeep Wrangler need the battery registered after replacement?
- JL moved from the JK's flooded Group 34 to a larger AGM battery. Which group fits depends on whether the specific engine/trim has engine stop-start. Confirm before ordering a replacement.
Sources
- NHTSA Part 573 Safety Recall Report 20V-124, clutch pressure plate
- NHTSA Part 573 Safety Recall Report 23V-787, 4xe HV battery fire risk
- The Drive, NHTSA opens investigation into 2018–2019 JL frame welds/steering
- Go-Parts, 2019–2024 Jeep Wrangler steering damper guide, TSB 23-079-23
- xtremediesel.com, 2020–2023 Wrangler 3.0 EcoDiesel oil spec (MS-12991, 5W-40, 9.0 qt)
- Victorville Motors / Fontana CDJR, Wrangler oil type & capacity by engine and year
- Green Car Reports, 2021 Wrangler 4xe EPA electric range (22 mi) and MPGe (49)
- MotorTrend, 2021 Rubicon 392 EPA fuel economy (13/17/14 mpg)
- DrivingLine / MotorTrend, Xtreme Recon package factory 35-in tire spec (LT315/70R17)
- 4 Wheel Parts, JL factory tire sizes by trim (Sport 245/75R17, Rubicon 285/70R17)
- jlwranglerforums.com, JL cabin air filter part number and location
- Edmunds, 2018 Jeep Wrangler specs (fuel tank, curb weight, EPA mpg)