A failing auxiliary battery in a 2019 Jeep Compass can trigger stop-start errors, dim interior lights, and dashboard warnings that make daily driving frustrating. The right replacement needs to match OEM dimensions, deliver consistent AGM performance, and handle the electrical demands of modern start-stop systems without breaking down after a few months.
I’m Amir — the founder and writer behind Four Wheel Ask. My research focuses on comparing battery specifications, AGM construction quality, warranty terms, and verified owner feedback to identify auxiliary batteries that offer genuine long-term reliability.
After comparing specifications, warranty terms, and owner experiences, here is our take on the best 2019 jeep compass auxiliary battery for dependable stop-start operation.
How To Choose The Best 2019 Jeep Compass Auxiliary Battery
Selecting the correct auxiliary battery for a 2019 Jeep Compass requires attention to physical dimensions, terminal layout, chemistry type, and cold cranking amperage. The OEM unit is a sealed AGM battery, and any replacement must match its footprint to fit the battery tray inside the passenger fender well. Skipping these checks often leads to return hassles or improper electrical performance.
Verify Group Size and Physical Dimensions
The 2019 Jeep Compass auxiliary battery typically corresponds to a Group Size 400 or a YTX14-BS form factor. Key measurements hover around 5.9 inches in length, 3.4 inches in width, and 5.7 inches in height. Always measure the original battery or confirm the group size in the owner’s manual before ordering. A battery that is too tall will not allow the retaining bracket to seat properly.
Prioritize AGM Chemistry
Absorbent Glass Mat (AGM) technology is non-negotiable for modern auxiliary batteries. AGM units are sealed, spill-proof, and built to handle the repeated charge-discharge cycles that stop-start systems demand. Conventional flooded lead-acid batteries lack the vibration resistance and deep-cycle endurance required for this application, which can lead to premature failure and electrical gremlins.
Check CCA and Reserve Capacity Ratings
Cold Cranking Amps (CCA) for this application typically falls in the 180 to 200 range. Reserve capacity (RC) indicates how long the battery can power accessories if the alternator fails. A battery with at least 20 minutes of RC provides a safety buffer for modern electronics. Higher CCA does not always mean better fitment, but staying within OEM specifications ensures the vehicle’s charging system can properly maintain the battery.
Evaluate Warranty as a Quality Signal
Premium auxiliary batteries from reputable brands often carry warranties of 36 months or more. A longer warranty typically reflects confidence in manufacturing quality and internal component durability. Budget units with short warranties may work initially but carry higher risk of failure within the first year. For a part that requires moderate labor to access, a solid warranty provides peace of mind that the replacement will last.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| ACDelco Gold AUX14-200 | Premium AGM | OEM-grade reliability | 200 CCA, Group 400, 36-month warranty | Amazon |
| Goodyear AUX14-AGM | Premium AGM | Jeep-specific fitment | 200 CCA, 22-min RC, 36-month warranty | Amazon |
| Autocessking AUX14 | Mid-Range AGM | Value with strong warranty | 200 CCA, 14Ah, 3-year warranty | Amazon |
| ACDelco Gold AUX12-180 | Premium AGM | Alternative premium option | 190 CCA, 36-month warranty | Amazon |
| Weize YTX14-BS | Budget AGM | Cost-conscious replacement | 200 CCA, 14Ah, sealed AGM | Amazon |
| Mighty Max YTX14-BS | Budget SLA | Entry-level backup | 200 CCA, 12Ah, universal fit | Amazon |
| Upstart Battery YTX14-BS | Budget AGM | Basic replacement | 12V 12AH, sealed AGM | Amazon |
In-Depth Reviews
1. ACDelco Gold AUX14-200 (88866185)
The ACDelco Gold AUX14-200 is manufactured to meet GM specifications for fit, form, and function, but its compatibility extends to most makes and models that require a Group Size 400 auxiliary battery including the 2019 Jeep Compass. The unit uses maintenance-free Absorbent Glass Mat technology with a leak-proof pressurized valve system that prevents dry-out and acid damage at the terminals. High-density plate oxide and heavy top-lead construction deliver maximum power-per-pound while optimizing vibration resistance for underhood installation.
Owners report that the AUX14-200 bolts directly into the factory battery tray without bracket modifications, and the 200 CCA rating provides ample cranking reserve for stop-start restarts even in cold weather. The sealed AGM design means no water checks or corrosion cleanup over the life of the battery. Some users note that verifying terminal orientation before purchase is essential, as polarity must match the OEM configuration — positive on the left, negative on the right for this group size.
The 36-month free replacement warranty signals strong manufacturer confidence in long-term durability. While this battery carries a premium price tier compared to generic alternatives, the combination of ACDelco quality control, GM-validated engineering, and comprehensive warranty coverage makes it a low-risk investment for Compass owners who plan to keep their vehicle for several more years.
What works
- GM-validated engineering with precise OEM fitment
- Leak-proof AGM design prevents terminal corrosion
- 36-month warranty provides strong long-term protection
What doesn’t
- Premium pricing tier may not suit every budget
- Requires verifying polarity matches Compass orientation
- Overkill for those selling the vehicle soon
2. Goodyear AUX14-AGM Group Size 400
The Goodyear AUX14-AGM delivers 200 cold cranking amps with a 22-minute reserve capacity, making it one of the most robust options available for the 2019 Jeep Compass auxiliary battery slot. Verified owner reports from Jeep Wrangler and Chrysler Pacifica owners confirm that this battery fits the factory tray and resolves stop-start system warnings after installation. The spill-proof AGM construction resists vibration and shock, which matters in a chassis-mounted location that sees road impacts regularly.
Owners specifically note that the terminal posts accept the factory cable connectors without modification, though the included screws may require careful hand-torquing to avoid stripping the soft lead posts. The 36-month warranty from a recognized tire and battery brand adds a layer of trust that generic no-name units cannot match. Several reviewers highlight that after disconnecting the main battery first and clearing fault codes, the stop-start system returned to normal operation within a short drive cycle.
For Compass owners who want a direct replacement that has been field-tested in similar Jeep applications, the Goodyear AUX14-AGM provides documented compatibility and strong performance specs. The battery is built in an ISO-certified facility and carries CE certification, which speaks to consistent manufacturing standards. The 22-minute reserve capacity offers meaningful backup power for accessories if the primary battery is compromised.
What works
- Verified fitment in Jeep models with same tray design
- 22-minute reserve capacity exceeds many rivals
- 36-month warranty from a nationally recognized brand
What doesn’t
- Some owners report terminal screw threading issues
- Not Jeep-branded, so some prefer OEM labels
- Requires proper code clearing procedure post-install
3. Autocessking AUX14 BCI Group 400
The Autocessking AUX14 is a Group Size 400 AGM battery that delivers 200 CCA and 14 amp-hours of capacity in a package that closely mirrors the OEM auxiliary battery dimensions. Multiple verified buyers confirm perfect fitment in Honda Accord and Civic applications, and the dimensions — 5.91 x 3.43 x 5.71 inches — align with the 2019 Jeep Compass battery tray requirements. The AGM construction is leak-proof and vibration-resistant, with a valve-regulated design that prevents acid leakage even if the battery is mounted on its side.
Owner feedback emphasizes that the battery arrived well-packaged and fully charged, with clear polarity markings that simplify installation. The 3-year warranty is unusually long for a battery in this price tier, suggesting the manufacturer has confidence in the internal build quality. Some users noted that the terminal bolts included are adequate but not premium grade, so reusing the original hardware from the factory battery may yield a more secure connection.
For Compass owners who want a middle-ground option between budget units and premium brand-name batteries, the Autocessking AUX14 offers strong specifications without the markup. The operating temperature range of -4°F to 122°F covers most North American climates, and the self-discharge rate of under 9 percent after 90 days means the battery holds its charge well during short-term storage. This is a smart pick for DIY owners who want reliable performance and a solid warranty at a reasonable spend.
What works
- Excellent 3-year warranty for the price tier
- Dimensions match OEM battery tray closely
- Leak-proof AGM design with wide temperature range
What doesn’t
- Included terminal bolts are not premium quality
- Brand is less established than ACDelco or Goodyear
- Not specifically marketed for Jeep applications
4. ACDelco Gold AUX12-180 (88866184)
The ACDelco Gold AUX12-180 is a slightly smaller sibling to the AUX14-200, offering 190 CCA and a 12 amp-hour rating while retaining the same premium AGM construction and 36-month warranty. This battery is designed as a direct replacement for vehicles requiring a Group Size 400 auxiliary battery with slightly lower current demands. Verified owner reports confirm successful installation in Volvo XC60 and Chevrolet Malibu applications, with users noting that stop-start system warnings cleared immediately after installation.
Like the larger AUX14-200, this unit uses maintenance-free AGM technology with a pressurized valve system that prevents electrolyte dry-out. The high-density plate oxide and through-partition connections maximize power output while reducing internal resistance. Some owners have reported that the battery failed within weeks, citing concerns that it may have been old stock that sat on a shelf for extended periods. This highlights the importance of checking the manufacturing date code upon arrival.
For Compass owners who want ACDelco quality but find the AUX14-200 specifications slightly higher than needed, the AUX12-180 provides a compatible alternative with the same warranty protection. The 190 CCA rating is still adequate for stop-start operation in moderate climates. However, the mixed reliability reports suggest that buyers should verify freshness and test the voltage immediately. The premium build quality and brand reputation make this a solid choice if a recent production date can be confirmed.
What works
- Premium AGM build with GM engineering standards
- 36-month warranty provides long coverage window
- Compact dimensions fit tight battery trays
What doesn’t
- Some units may be older stock with reduced lifespan
- 190 CCA is lower than 200 CCA alternatives
- Mixed owner reports on long-term reliability
5. Weize YTX14-BS High Performance
The Weize YTX14-BS is a sealed AGM battery that delivers 200 CCA with a 14 amp-hour capacity in the standard YTX14-BS form factor. While this battery is primarily marketed for powersports applications, a verified owner review confirms successful use in a 2018 Chrysler Pacifica auxiliary battery replacement, resolving a stop-start system warning. The dimensions — 5.94 x 3.39 x 5.73 inches — fall within the range that fits the 2019 Jeep Compass battery tray, though owners should verify terminal alignment before final installation.
Multiple owners praise the strong cranking power and the maintenance-free design, noting that the battery arrived fully charged and ready to install. The quad-terminal design offers flexibility for different cable configurations, which can simplify installation in vehicles where the factory cable routing is tight. Weize holds UL, CE, and ISO 9001 certifications, indicating a commitment to manufacturing consistency that is uncommon at this price tier. Some users reported that the first unit failed prematurely but the replacement performed well afterward.
For Compass owners working with a tighter budget, the Weize YTX14-BS represents a functional entry point into AGM auxiliary battery replacement. The manufacturer recommends replacing auxiliary batteries every two years, which aligns with the expected lifespan of budget AGM units. While the long-term durability may not match premium options, the upfront savings are substantial. This battery also works for motorcycles and ATVs, making it a versatile spare to keep on hand.
What works
- Strong 200 CCA for reliable cold-weather starts
- Quad-terminal design offers flexible cable routing
- UL and ISO certifications for manufacturing quality
What doesn’t
- Not specifically marketed for automotive auxiliary use
- Occasional quality control inconsistencies reported
- Two-year replacement cycle recommended by brand
6. Mighty Max Battery YTX14-BS
The Mighty Max YTX14-BS is a 12-volt, 12 amp-hour sealed lead-acid battery with 200 CCA and a universal fit designation. The dimensions — 6.00 x 3.44 x 5.75 inches — are close to the OEM auxiliary battery size, though the 12Ah rating is slightly lower than the 14Ah that some Compass applications require. The battery uses AGM technology for spill-proof operation and can be mounted in any position, which provides flexibility for installation in tight engine bays.
Owner reviews for this battery are primarily from powersports and Mercedes auxiliary battery applications, where users report straightforward installation and reliable starting power. The battery ships with screws only — no wire harness or mounting hardware is included. Some users note that the terminal posts may require slight adjustment or different bolt lengths depending on the specific vehicle cable configuration. The 1-year warranty is shorter than premium competitors, which reflects the budget positioning of this product.
For Compass owners who need a temporary replacement or are troubleshooting whether the auxiliary battery is the root cause of electrical issues, the Mighty Max YTX14-BS offers the lowest upfront commitment. The universal fit means it will work in many applications beyond the Compass, but owners should confirm that 12 amp-hours of capacity meets the stop-start system demands, especially in vehicles equipped with additional electrical accessories.
What works
- Universal fit design for broad compatibility
- Sealed AGM allows flexible mounting positions
- Low acquisition cost for diagnostic replacement
What doesn’t
- 12Ah capacity may be marginal for some Compass builds
- 1-year warranty is shorter than premium options
- No mounting hardware included with purchase
7. Upstart Battery YTX14-BS
The Upstart Battery YTX14-BS is a 12-volt, 12 amp-hour sealed AGM battery designed as a replacement for Mercedes-Benz auxiliary battery part number 2115410001. While it is not specifically marketed for the Jeep Compass, the physical dimensions and terminal layout are consistent with the YTX14-BS standard that many auxiliary battery applications use. Verified owners in Mercedes GLK and CLA models report that the battery fixed stop-start stalling and restored ECO functions after a 15-minute DIY installation.
Owner feedback highlights a critical consideration: this battery does not have a vent port, so it may require a short hose adapter if the factory battery uses a side-mounted vent tube. The factory-charged design includes nut-and-bolt M6 posts, and some vehicle cable configurations may need a longer bolt or a 3-millimeter spacer for secure connection. One buyer reported that the battery did not fit their E350 and noted that returns through Amazon drop-off were not an option, so careful measurement before purchase is strongly advised.
For Compass owners who are comfortable with DIY terminal adjustments and want the lowest possible entry point into AGM auxiliary battery ownership, the Upstart Battery YTX14-BS is worth considering only if dimensions and polarity are verified against the original battery. The 12Ah capacity is at the lower end of what is recommended, so it is best suited for vehicles with minimal additional electrical loads. This is a niche pick that requires more buyer diligence than most alternatives on this list.
What works
- Factory-charged and ready for immediate installation
- Resolves stop-start and ECO function issues
- Very low upfront cost for AGM technology
What doesn’t
- No vent port may complicate some installations
- Return process is restricted per owner reports
- 12Ah capacity is marginal for full-feature Compass models
Hardware and Specs Guide
AGM Battery Chemistry
Absorbent Glass Mat (AGM) batteries use fiberglass mats soaked in electrolyte between lead plates. This design eliminates free liquid, making the battery spill-proof and vibration-resistant. AGM units handle deep discharge cycles better than flooded batteries, which is essential for stop-start systems that repeatedly draw and recharge the auxiliary battery. They also charge faster and have lower internal resistance, translating to more available power at the terminals when the engine restarts.
Group Size 400 Form Factor
The Group Size 400 designation defines a battery with approximate dimensions of 5.9 inches long, 3.4 inches wide, and 5.7 inches tall. Terminal orientation places the positive terminal on the left and negative on the right when viewed from the top. This size is used across many Chrysler, Jeep, Dodge, and GM vehicles for auxiliary battery applications. Measuring the factory battery before ordering is the only way to guarantee fitment, as some model years have subtle tray variations.
Cold Cranking Amps (CCA)
CCA measures a battery’s ability to start an engine at 0 degrees Fahrenheit. For the 2019 Jeep Compass auxiliary battery, 180 to 200 CCA is the standard range. The auxiliary battery only needs to power the stop-start restart and maintain electronics during engine-off periods, so it does not require the high CCA of a main starting battery. Exceeding 200 CCA is not harmful, but it may indicate a physically larger battery that does not fit the tray.
Reserve Capacity (RC)
Reserve capacity is the number of minutes a battery can deliver 25 amps at 80 degrees Fahrenheit before voltage drops below 10.5 volts. For auxiliary batteries, 20 to 25 minutes of RC is typical. A higher RC provides a safety buffer for accessories if the alternator fails or the main battery is compromised. Batteries with very low RC may cause electrical components to behave erratically during engine-off periods.
FAQ
What happens when the auxiliary battery fails in a 2019 Jeep Compass?
Can I replace the auxiliary battery myself?
How long does a 2019 Jeep Compass auxiliary battery last?
Do I need to reset the computer after replacing the battery?
Can I use a standard flooded battery instead of AGM?
Final Thoughts: The Verdict
For most buyers, the best 2019 jeep compass auxiliary battery winner is the ACDelco Gold AUX14-200 because it combines GM-validated engineering, a 36-month warranty, and proven AGM construction that directly matches the OEM specifications. If you want a strong warranty with verified Jeep fitment, grab the Goodyear AUX14-AGM. And for the best balance of price and coverage, nothing beats the Autocessking AUX14 with its generous 3-year warranty.
Certification: BSc in Mechanical Engineering
Education: Mechanical engineer
Lives In: 539 W Commerce St, Dallas, TX 75208, USA
Md Amir is an auto mechanic student and writer with over half a decade of experience in the automotive field. He has worked with top automotive brands such as Lexus, Quantum, and also owns two automotive blogs autocarneed.com and taxiwiz.com.