10 Best Battery for Acura MDX Reviews

You’re driving your Acura MDX, and suddenly the key fob doesn’t unlock the doors. Or maybe the dashboard warns you about the charging system. A dead battery—whether in your remote or under the hood—can throw off your whole day. But you don’t need to run to the dealership for every little fix. With the right battery, you can save time, money, and frustration.

In this guide, we’ve rounded up the best batteries for your Acura MDX, covering everything from CR2032 key fob replacements to a heavy-duty starting battery and a sensor cable for charging issues. You’ll learn what each product offers, how it fits your MDX, and which one suits your specific needs. Let’s find the perfect power source for your ride.

Deluxe Batteries Key Fob Replacement Batteries for Acura – Pack of 2

If you own a 2014–2025 Acura MDX, this two-pack from Deluxe Batteries is a straightforward solution for a dying key fob. The kit includes a compatibility guide in the product images, so you can double-check that your fob matches before you buy. The batteries are designed to avoid dealer service charges—you can swap them in a few minutes without any programming.

The pack covers a wide range of Acura models, including the MDX, RDX, TLX, and others, but it’s not compatible with flip keys or older pre-2014 fobs (except those listed). The included guide makes the process easy, even if you’re not handy. You get two batteries, so you can replace the one in your spare fob too.

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• **To confirm compatibility please use the picture guide located in the product images**
• Avoid expensive dealer service charges and easily replace your key fob battery yourself – only takes a few minutes – no programming required – guide to changing your key fob battery in the description
• Compatible with the following Acura models and model years: ✔ ADX (2025) ✔ ILX (2013-2022), ✔ Integra (2023-2025), ✔ MDX (2014-2025), ✔ NSX (2017-2022), ✔ RDX (2010-2025), ✔ RL (2009-2013), ✔ RLX (2014-2020), ✔ TL (2009-2014), ✔ TLX (2015-2025), and ✔ ZDX (2010-2025)
• Not compatible with: ✘ CL ✘ RSX ✘ TSX. Not compatible with Acura flip key. Not compatible with most older (pre-2014) Acura fobs except as noted in the product images compatibility guide.
• Includes (2) original premium Deluxe CR2032 3V batteries. Does not include actual key fob

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Key Battery Outlet CR2032 for Acura – 2-Pack

Key Battery Outlet offers a no-fuss CR2032 two-pack specifically for Acura key fobs that use the coin battery. The cells are OEM-quality 3V lithium, ensuring a strong signal and consistent performance. You’ll appreciate the precise fit—just pop open your fob, swap the old battery, and you’re back in action.

This kit is compatible with MDX (2014–2025) and many other Acura models, but you must confirm your fob uses a CR2032. It’s not compatible with flip keys or pre-2014 remotes unless listed. The batteries are affordable and come sealed for long shelf life. If you want a simple, reliable replacement without extra tools, this is a solid pick.

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• Comprehensive Replacement Kit – Two CR2032 coin batteries for a quick, seamless Acura key fob battery swap.
• OEM-Quality Cells – High-purity 3V lithium CR2032 for precise fit, strong signal, and reliable performance.
• Wide Acura Compatibility – For key fobs that specify CR2032: ADX (2025), ILX (2013–2022), Integra (2023–2025), MDX (2014–2025), NSX (2017–2022), RDX (2010–2025), RL (2009–2013), RLX (2014–2020), TL (2009–2014), TLX (2015–2025), ZDX (2010–2025). Always confirm your battery code is CR2032.
• NOT compatible with: ✘ CL, ✘ RSX, or ✘ TSX. Not for Acura flip keys. Generally incompatible with most pre-2014 Acura remotes unless specifically listed in the compatibility images.
• Installation Video – Follow the step-by-step video to finish in minutes while helping protect your key fob case during battery replacement.

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Mighty Max Battery MM-H6 Group 48 AGM Car Battery

When your Acura MDX needs a main battery, the Mighty Max MM-H6 is a strong contender. This AGM (Absorbent Glass Mat) battery delivers 760 cold cranking amps (CCA) and 70 amp-hours, making it ideal for starting in any weather—even cold mornings. The sealed, spill-proof design means you can mount it in various positions without worrying about acid leaks.

With a 120-minute reserve capacity, it supports longer accessory run times, which is handy for your MDX’s electronics. The AGM construction resists vibration and deep discharge recovery, so it lasts longer than traditional flooded batteries. It’s a direct fit for Group 48 vehicles, but double-check your MDX’s battery tray size. If you want a maintenance-free option with strong starting power, this is a great choice.

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• Fast Starting Power: This 12V 70Ah 760 CCA delivers strong, steady starts is ready for any weather in any season.
• Made to Last: With its 120-minute Reserve Capacity supports longer run times and a longer overall battery lifespan.
• All Power, No Mess AGM Design: Sealed and spill-proof, the MM-H6 is built with high discharge output and deep discharge recovery to keep power steady when it counts.
• Strength That Starts on the Inside: The rugged construction resists shock, vibration, and harsh conditions, delivering reliable performance across a wide range of temperatures and tough environments.
• Tested Tough & Certified Safe: Mighty Max batteries are built in an ISO-certified facility and meet CE standards for quality, safety, and reliability
• Rechargeable and Versatile: Mounts in multiple positions (excluding upside down) for flexible vehicle installation.
• Dimensions: Sized at 10.94 x 6.88 x 7.48 inches, ready to fit your ride with ease. Polarity is easy to spot, with the positive terminal on the right and the negative on the left.
• Included: Each battery includes mounting screws for quick, hassle-free installation.
• Not Included: Wire harness and mounting accessories are not included.
• 3 Year Warranty: Mighty Max strength, long-haul protection, and confidence that you’re powered to the max.

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KKNCO Key Fob Battery Replacement for Acura – with Tools

KKNCO’s kit includes two CR2032 batteries plus pry tools, making it a complete solution for your MDX key fob battery swap. The tools are dual-purpose—they help open the remote without scratching the case and also remove the old battery. The batteries are OEM-grade, so you get the same performance as the original.

Compatibility covers MDX (2014–2025) and many other Acura models, but not the TSX, CL, or RSX. The installer video is a nice touch, though not included in the pack. If you’ve never changed a fob battery before, the included tools make the job almost foolproof. You’ll save the dealer trip and keep your key fob working perfectly.

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• PACKAGE INCLUDED : Two (2) CR2032 Remote Fob Battery and Opening/Pry Tools , Five item bundle (total 5pcs) , PLEASE NOTE: Keyless entry remote fob not included.
• Avoid a Service Appointment for Battery Replacement , Battery replacement is simple and remote reprogramming is not required. Original Battery as Provided by Manufacturer , Same batteries as provided by original manufacturer in Smart Key fobs. Please Refer to product image to confirm compatibility.
• Compatible with Acura models and model years: Integra (2023-2025) ; ADX (2025) ; ILX (2013-2022) ; MDX (2014-2025) ; NSX (2017-2022) ; RDX (2010-2025) ; RL (2009-2013) ; RLX (2014-2020) ; TL (2009-2014) ; TLX (2015-2025) and ZDX (2010-2025)
• NOT Compatible with Acura models : ✘ Acura TSX , ✘ Acura CL , ✘ Acura RSX
• Step-By-Step Installation Video Included , Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure. To Assist Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.

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BBXSA Key Fob Replacement Batteries for Acura – 2 Pack with Pry Tool

BBXSA offers a similar value: two CR2032 batteries and a pry tool, all designed for Acura smart fobs with 4 or 5 buttons. The batteries are manufacturer-sourced, so they fit perfectly and last. The kit is compatible with the MDX (2014–2025) and many other Acura models, including the newer Integra and ADX.

You’ll need to check the fitment guide in the product images to confirm your fob style. The pry tool helps you avoid damaging the case when opening it. Installation takes only a few minutes, and no programming is required. If you want a reliable backup set for your MDX key fobs, this pack delivers solid performance at a reasonable price.

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• **Please confirm fitment with our listing images and make sure the CR2032 battery will fit your key's battery**- Batteries included are the same as provided by the manufacturer ensuring perfect fit and great reliability.
• Avoid expensive dealer service charges and easily replace your key fob battery yourself – only takes a few minutes – no programming required – guide to changing your key fob battery in the description.
• A pry tool will be included with this kit to make your replacement easy as possible and not damage your key in the process.
• Compatible with the following Acura models and model years: ADX (2025) , ILX (2013-2022), Integra (2023-2025), MDX (2014-2025), NSX (2017-2022), RDX (2010-2025), RL (2009-2013), RLX (2014-2020), TL (2009-2014), TLX (2015-2025), and ZDX (2010-2025)
• Not compatible with: CL , RSX , TSX. Not compatible with Acura flip key. Not compatible with most older (pre-2014) Acura fobs except as noted in the product images compatibility guide.
• INSTALLATION VIDEO – A quick and easy to follow install video will be supplied to replace your replacement battery for Acura's.

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ZIWLU Key Fob Replacement Batteries for Acura – OEM Original

ZIWLU markets its batteries as the same OEM cells used in original Acura smart key fobs. The two-pack includes tools and an installation video (via a link in the product images). The batteries are designed for FCC IDs common on Acura fobs, ensuring a precise fit for your MDX (2014–2025).

The stable voltage output means you won’t get intermittent signal drops. The batteries have a long expiry date, so you can store the spare without worry. Compatibility covers most 4 or 5 button fobs, but not flip keys. If you want the closest thing to a factory replacement, this kit is a top choice.

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• **Please check the second product image to confirm compatibility (Installation Videos + Tools Included)**
• Compatible with Acura (4 or 5 button) Smart Key Fob including – ILX (2013-2022), MDX (2014-2025), NSX (2017-2022), RL (2009-2013), RDX (2010-2025), RLX (2014-2020), TL (2009-2014), TLX (2015-2025), ZDX (2010-2025), ADX (2025), Integra (2023-2025), (for FCC ID: ACJ932HK1210A, A2C32523200, A2C30399700, KR5V1X)
• ORIGINAL OEM BATTERY – Original OEM Battery as Provided by Manufacturer, ensuring seamless compatibility and maximum performance for your fob. (Keyless entry remote fob not included.)
• STABLE VOLTAGE OUTPUT & HIGH PERFORMANCE – Using high quality core raw materials and precision manufacturing process make battery safer.(Long Lasting with long expiry date.)
• HIGH SAFETY AND EASY INSTALLATION – Avoid a service appointment for battery replacement, remote reprogramming is not required. Opening/Pry Tool included to help you open the remote without scratching or damaging your remote case.

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MEILENG Battery Sensor Ground Cable Assembly for Acura MDX 2010-2011

If your 2010–2011 Acura MDX shows a “Check Charging System” warning, the culprit might be the battery sensor ground cable. MEILENG’s assembly replaces OE parts 06326-STX-A00 and 32600-STX-A00, including the sensor and ground cable. This precision-engineered part restores proper power management by providing accurate current data to the ECU.

Installation is a direct replacement—no modifications needed. The high-precision monitoring technology ensures the charging system works as intended. If you’ve already replaced the battery and alternator but the warning persists, this cable is the likely fix. It’s a specific solution for a common problem on those MDX years.

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• [Vehicle Fitment] Precision-engineered for 2010-2011 Acura MDX models, ensuring a 100% factory-level fit and finish
• [Direct Replacement] Replaces OE parts 06326-STX-A00 and 32600-STX-A00, including the complete sensor and ground cable assembly
• [System Solution] Features the critical Ref No. 19 battery sensor to resolve "Check Charging System" warning lights and restore power management
• [OEM Performance] High-precision current monitoring technology ensures accurate data feedback to the ECU, matching original equipment standards
• [Easy Installation] Designed as a plug-and-play unit with factory-style connectors for a quick, hassle-free replacement with no tools modified

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uuam Key Fob Replacement Batteries for Acura – Multi-Tool Kit

uuam’s kit includes two CR2032 batteries and three pry tools, giving you options for opening different fob designs. The batteries are OEM-sourced, so they match the original manufacturer’s specifications. The kit is compatible with MDX (2014–2025) and other Acura models as long as your fob uses the CR2032 cell.

An installation video is linked in the product packaging, which walks you through the process step by step. The dual-purpose tools help you open the remote without scratching the plastic. No reprogramming is needed. If you want extra tools and a video guide, this kit offers good value for your MDX key fob maintenance.

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• PACKAGE-This kit includes (2) CR2032 3V batteries and (qty 3) pry tool ,Check Fitment Guide (PLEASE NOTE: Does not include actual key fob)**Please confirm compatibility using the fitment guide located in the product images** This battery will not fit unless your key fob matches one of the examples provided
• EFFORTLESS INSTALL – Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery
• ORIGINAL OEM BATTERY AS PROVIDED BY MANUFACTURER – Same batteries as provided by OEM original manufacturer in all (Smart Key) remote fobs
• INSTALLATION VIDEO – Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure. AVOID A SERVICE APPOINTMENT FOR BATTERY REPIACEMENT – Battery replacement is simple and remote reprogramming is not required
• Compatible with the following Acura models and model years: ADX (2025) , ILX (2013-2022), Integra (2023-2025), MDX (2014-2025), NSX (2017-2022), RDX (2010-2025), RL (2009-2013), RLX (2014-2020), TL (2009-2014), TLX (2015-2025), and ZDX (2010-2025)
• Not compatible with: CL , RSX , TSX. Not compatible with Acura flip key. Not compatible with most older (pre-2014) Acura fobs except as noted in the product images compatibility guide

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Pinochi Key Fob Battery Replacement for Acura – Reliable OEM

Pinochi offers a straightforward two-pack of CR2032 batteries for Acura smart remotes. The batteries are OEM-quality, tested under strict standards for safety and longevity. They fit 4 or 5 button fobs for MDX (2014–2025) and many other models, including the newer ADX and Integra.

An installation video is available (check product images), and the batteries come with a long shelf life. The kit does not include tools, but you can use a small screwdriver or the included pry tool from other kits. If you prefer a simple, reliable battery pack without extra clutter, this is a solid option.

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• Please check product image to confirm compatibility.(Step-By-Step Installation Video included)
• Compatible with the following Acura Key Fobs: ADX (2025), ILX (2013-2022), Integra (2023-2025), MDX (2014-2025), NSX (2017-2022), RDX (2010-2025), RL (2009-2013), RLX (2014-2020), TL (2009-2014), TLX (2015-2025), ZDX (2010-2025)
• ORIGINAL OEM CR2032 BATTERY- Same batteries as provided by OEM original manufacturer in all (4 or 5 button) Smart Key Remote Fobs. (FCC ID: ACJ932HK1210A, A2C32523200, A2C30399700, KR5V1X)
• SAFE AND RELIABLE – Tested under Strict Quality Control Standards. Long Battery Life and Long Lasting Power.
• SIMPLIFIES BATTERY REPLACEMENT: Avoid expensive dealer service charges by easily replacing your key fob battery yourself! No need to schedule battery replacement service, no need to reprogram remote control. The included tool helps to open the remote control and remove the batteries without damaging the remote control case.

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IYUKETROR Key Fob Replacement Batteries for Acura – Budget-Friendly Pack

IYUKETROR’s kit includes two CR2032 batteries and one pry tool, all aimed at keeping your MDX key fob powered. The batteries are OEM-quality, and the tool is dual-purpose for opening the fob and removing the old battery. Compatibility covers MDX (2014–2025) and many other Acura models, but not flip keys or pre-2014 fobs unless listed.

The fitment guide in the product images helps you confirm before buying. Installation is quick and requires no programming. If you’re on a budget and need a basic replacement set, this pack does the job without extra frills. It’s a cost-effective way to avoid a dealer visit.

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• Keyless entry remote fob not included: This listing is for OEM Original replacement batteries as provided by Manufacturer for (Smart Key) Remote Fobs. Bundle of Two (2) CR2032 Remote Fob Battery and Opening/Pry Tool.
• Please confirm compatibility using the fitment guide located in the product images – Compatible with the following Acura models and model years: ADX (2025), ILX (2013-2022), Integra (2023-2025), MDX (2014-2025), NSX (2017-2022), RDX (2010-2025), RL (2009-2013), RLX (2014-2020), TL (2009-2014), TLX (2015-2025), and ZDX (2010-2025)
• Not compatible with: CL ; RSX ; TSX. Not compatible with Acura flip key. Not compatible with most older (pre-2014) Acura fobs except as noted in the product images compatibility guide.
• OEM-Quality- Easy Process: Includes dual-purpose opening tool to help open the remote control (without scratching or damaging the remote control case) and remove the battery.
• Avoid a Service Appointment for Battery Replacement: Remote reprogramming is not required and Battery replacement is simple.
• Includes step-by-step installation video: Contains a detailed instructional video (via the link on the product packaging) demonstrating the battery replacement process.

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Buyer’s Guide: What to Consider

Choosing the right battery for your Acura MDX involves more than just picking any pack off the shelf. Whether you need a new CR2032 for your key fob or a full-size AGM under the hood, understanding a few key factors helps you make a smart purchase. Here’s what to consider before you buy.

• Battery Type: Key Fob vs. Main Battery: Your Acura MDX uses two types of batteries: a small CR2032 coin cell for the key fob and a larger 12V battery under the hood. Make sure you know which one you need. Key fob batteries are cheap and easy to replace yourself, while the main battery requires more power and proper sizing.
• Compatibility with Your MDX Model Year: Not all batteries fit every Acura MDX. For key fob batteries, check the model year range (e.g., 2014–2025 for most CR2032 packs). For the main battery, ensure it matches the Group 48 size and has the correct terminal layout. Always verify fitment using the product images or compatibility guides.
• Battery Chemistry: CR2032 vs. AGM: Key fob batteries are all CR2032 lithium coin cells—they're standard. The main battery can be conventional flooded, AGM (absorbent glass mat), or EFB. AGM batteries like the Mighty Max MM-H6 offer better vibration resistance, deeper discharge recovery, and longer life, making them ideal for modern MDX electronics.
• Cold Cranking Amps (CCA) and Reserve Capacity: For the main battery, CCA tells you how much starting power it has in cold weather. Your MDX typically needs 600–800 CCA. Reserve capacity (RC) indicates how long the battery can run accessories if the alternator fails. A higher RC (120 minutes or more) is beneficial for long trips or heavy electrical loads.
• Included Tools and Installation Ease: Key fob battery replacement is simple, but a pry tool makes it easier and prevents damage to the fob case. Many kits include tools. For the main battery, you'll need basic wrenches and a socket set. The sensor cable for the 2010–2011 MDX is a plug-and-play replacement, but you should disconnect the battery before installing.
• OEM vs. Aftermarket Quality: OEM-quality batteries are built to the same specifications as the ones from the dealership. They ensure proper voltage output and longevity. While aftermarket options can be cheaper, they may not last as long. Look for brands that guarantee stable voltage and long shelf life, especially for key fob batteries.

Conclusion

No matter what battery issue your Acura MDX is facing, there’s a solution that fits your budget and skill level. For key fob batteries, any of the CR2032 packs we reviewed—like the Deluxe Batteries or ZIWLU options—will get your remote working again in minutes. If you need a main battery, the Mighty Max MM-H6 delivers reliable starting power and reserve capacity. And for those pesky charging system warnings on 2010–2011 MDXs, the MEILENG sensor cable is a direct fix.

Always check compatibility with your specific model year and fob type before buying. With the right battery, you’ll keep your MDX running smoothly without unnecessary trips to the dealer. Choose the one that matches your needs, and enjoy the peace of mind that comes with reliable power.