Acura Mdx 2011 Battery Replacement: Key Fob Cr2032 And Agm Starter Options

⚡ Quick Verdict

📋 How We Evaluated

Evaluation prioritized build quality, real-world performance, and value based on stated specs and durability claims. For main batteries and sensors, fit guidance and replacement design mattered for preventing warning lights and charging issues.

Amazon rating signals were not available, so the review relied on compatibility clarity, manufacturing approach, and typical user suitability for Acura MDX 2011 needs.

Battery Type	AGM, maintenance free
BCI Group	48 (H6 L3)
Capacity	70Ah
Starting Power	760CCA

What We Found

Uplus’s BCI Group 48 AGM battery targets start-stop vehicles with maintenance-free operation. The listing provides concrete sizing guidance for BCI Group 48 (H6 L3) and includes terminal layout details, which helps ensure correct fit beyond vague compatibility claims.

It rates at 760CCA and 70Ah, and it highlights suitability for frequent short trips and idle periods common in real ownership patterns. Uplus claims 4-times extra cycling compared with standard conventional batteries, along with deep-cycle and cranking power through calcium lead positive grid design.

Safety and durability messaging includes spill protection, no free acid, and high vibration resistance. For an Acura MDX 2011 battery replacement, the strong detail around dimensions and start-stop orientation makes it stand out as a practical option with fewer guesswork points.

Who It’s For

This battery suits Acura MDX 2011 owners who want a sealed AGM replacement and prefer verified fit using dimensions and terminal layout. It fits drivers who frequently do short trips, sit unused, or drive with many electrical accessories.

The 760CCA rating supports reliable cold weather starts, while the cycling focus suits start-stop behavior. Value comes from maintenance-free convenience and detailed install-relevant measurements. Buyers should still compare tray size and terminal polarity with the original battery before purchase, especially if the vehicle uses a different terminal orientation.

Battery Model	OPTIMA REDTOP 35
Voltage	12V
CCA	720
Reserve Capacity	90 minutes

What We Found

Optima REDTOP 35 delivers sealed AGM performance in a compact footprint with high starting power. The listing specifies 12V with 720 cold cranking amps and provides exact physical measurements for length, width, height, weight, and terminal type for easier match.

It includes a 90-minute reserve capacity and claims faster charging capabilities, which can matter when the vehicle cycles through accessories. Optima’s SpiralCell technology uses 99.99% pure lead for consistent output and improved starting in bad weather.

It also emphasizes durability, citing vibration resistance far beyond standard flooded batteries and stating it can last up to three times longer. The main limitation is that the product targets basic electrical demands and uses a form factor that must match the MDX 2011 battery tray correctly.

Who It’s For

This battery fits drivers who want premium sealed AGM reliability and fast charging behavior for everyday use. It suits vehicles exposed to vibration, frequent temperature swings, or owners who replace batteries early to maintain consistent starts.

The 720CCA rating supports reliable cranking, and the reserve capacity helps maintain power for accessories after starts. It is best when the MDX 2011 battery tray accepts Optima’s size and SAE post terminal configuration. Buyers should confirm group size and fit carefully, since premium batteries often require exact tray clearance.

Battery Type	CR2032 (3V lithium coin batteries)
Quantity	2-pack
Target Vehicles	Acura MDX 2014-2025 and other CR2032-compatible models
Compatibility Warning	Not compatible with CL, RSX, TSX or most flip-key designs

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What We Found

This Acura key fob replacement kit ships a comprehensive 2-pack of CR2032 batteries for quick swaps. The listing emphasizes OEM-quality 3V lithium cells, aiming for a precise fit, strong signal, and dependable performance.

Compatibility targets many Acura models that specify CR2032, including MDX 2014-2025 and RDX 2010-2025, but it also clearly calls out non-compatible remotes. It states it will not work for CL, RSX, or TSX, and warns about most pre-2014 Acura remotes unless images confirm fit.

The kit includes an installation video link, which supports careful battery replacement while reducing the chance of case damage. Overall, it stands out for straightforward battery matching.

Who It’s For

This kit suits Acura owners who already know their key fob accepts CR2032 and want a simple battery-only replacement. It fits common scenarios like weak range, intermittent lock/unlock, and slow response when the fob has been used frequently.

The value comes from getting two cells instead of one, which reduces repeat purchases. It also fits shoppers who prefer a guided swap process. Those with flip keys or uncertain battery codes should confirm compatibility first to avoid wasted effort.

Fitment	2010-2011 Acura MDX
OE Replacement	06326-STX-A00 and 32600-STX-A00
System Target	Ref No. 19 battery sensor for charging warnings
Install Style	Plug-and-play assembly with factory connectors

What We Found

This product targets a specific battery sensor ground cable assembly for Acura MDX 2010-2011. It states a precision-engineered fit for those model years and includes a complete sensor and ground cable unit to replace the OE parts 06326-STX-A00 and 32600-STX-A00.

The listing positions Ref No. 19 battery sensor as a solution for “Check Charging System” warning lights and power management errors. It also highlights high-precision current monitoring technology designed to match original equipment standards and provide accurate data feedback to the ECU.

Installation is presented as plug-and-play with factory-style connectors, which reduces the chance of wiring mismatch. Compared with generic battery parts, it stands out for addressing a warning-light scenario with an OEM cross-reference and year range.

Who It’s For

This assembly fits Acura MDX 2011 owners dealing with charging system warnings driven by a failed battery sensor or ground cable. It suits DIYers and shop technicians who want a direct replacement that matches the original part numbers.

Typical use cases include “Check Charging System” alerts, inconsistent battery charge behavior, and related electrical management concerns. Value improves when the problem stems from the sensor hardware rather than the main battery itself.

Those chasing a no-crank issue should test the battery first, since this product targets sensor monitoring, not cranking capacity.

Battery Type	CR2032 (3V)
Quantity	2-pack batteries
Included Tools	Opening/pry tools
Compatibility Focus	CR2032 Acura smart remotes listed in the fitment guide

What We Found

KKNCO offers a key fob battery replacement bundle focused on Acura smart remotes that use CR2032. The package includes two CR2032 remote fob batteries plus opening and pry tools, bundled as a five-item set.

The listing claims simple battery replacement with no remote reprogramming required, which matches typical smart fob behavior when only the coin cell changes.

It positions the included batteries as the same as the manufacturer-provided originals, and it emphasizes a compatibility list covering many Acura models and year ranges, including MDX 2014-2025. The product also provides an installation video link and tool design intended to reduce scratching or key case damage.

It clearly marks several incompatible models such as TSX, CL, and RSX, and points shoppers to the fitment guide to confirm battery style.

Who It’s For

This bundle suits Acura owners who want more than batteries, especially when the fob case feels tight or difficult to open without the right tools. It fits common ownership situations like weak key range, intermittent unlocking, or a dead fob that no longer triggers properly.

The included pry/opening tools support careful access for frequent DIYers. Value also comes from a two-battery pack, which helps manage battery swaps over time. Before purchasing, confirm the fob style because the listing excludes some Acura models and flip-key designs.

Battery Type	AGM, sealed spill-proof
Group Size	48 (BCI) / H6
Capacity	70Ah with 120RC
Starting Power	760 CCA

What We Found

Mighty Max’s MM-H6 AGM is built as a sealed, spill-proof 12V battery designed for strong starting and long run stability. The listing targets 70Ah and 760 CCA, with a 120-minute reserve capacity rating that supports longer power demands.

It emphasizes deep discharge recovery and high discharge output, which can help when vehicles sit for periods or face repeated short trips. The construction claims resistance to shock and vibration across harsh temperatures, supported by certification language including ISO-facility production and CE standards.

It also positions AGM as maintenance-free, so owners avoid topping off electrolyte. As a replacement, this stands out for combining respectable CCA with reserve capacity and a sealed AGM design, though group-size fit must still match the vehicle’s battery tray.

Who It’s For

This battery fits drivers who need an AGM replacement for start-stop and heavy accessory loads, especially in stop-and-go driving or during colder seasons. It also works for people who prefer sealed, maintenance-free operation and want spill-proof safety.

The 760 CCA and reserve capacity support a wide range of typical MDX electrical demands, including navigation and heated seats. It suits buyers comfortable verifying BCI Group 48 (H6 L3) size and terminal orientation before ordering. Those with different sizes should not assume interchangeability.

Battery Type	CR2032 (3V)
Quantity	Pack of 2
Compatibility Basis	Use the picture guide to confirm fob match
Programming Requirement	No programming required

What We Found

Key Fob Replacement Batteries by Keymall-style branding targets Acura smart fobs that use CR2032. The listing emphasizes confirmation through picture guides and states battery replacement takes only minutes with no programming required.

It covers a long Acura model span, including ADX 2025, ILX 2013-2022, Integra 2023-2025, MDX 2014-2025, RDX 2010-2025, RL 2009-2013, RLX 2014-2020, TL 2009-2014, TLX 2015-2025, and ZDX 2010-2025. It also explicitly warns about incompatibility with CL, RSX, TSX and Acura flip keys.

The pack includes two CR2032 3V premium deluxe batteries, but it notes it does not include the actual key fob. It stands out for covering many Acura models with a clear compatibility list and a strong “no programming” promise common to coin-cell swaps.

Who It’s For

This product fits Acura owners who simply need CR2032 replacement batteries for compatible smart fobs. It suits routine DIY battery swaps when range drops or the fob becomes unreliable at close distances. It is especially useful for households managing multiple vehicles or multiple fobs, because it includes two batteries.

Value improves when compatibility verification passes through the picture guide. Buyers with unclear fob style, pre-2014 remotes, or flip-key designs should not assume compatibility and should cross-check first.

Battery Type	AGM (absorbed glass-mat) pure lead
Group Size	24F (MTX-24F)
CCA	710 CCA
Service Life Claim	2X AGM and 3X flooded battery life

What We Found

Interstate’s MTX-24F uses AGM pure lead construction and targets longer life through a design intended for start-stop vehicles. The listing highlights a maintenance-free, spill-proof approach using valve-regulated lead-acid technology.

It claims expected service life 2X longer than conventional lead alloy AGM and 3X longer than conventional flooded batteries, supported by the design promise of more lead mass packed into the battery.

It also positions the battery for premium accessory support beyond starting power, which matters for modern vehicles with frequent electronics use. The compatibility guidance relies on a downloadable guide rather than hard-fit guarantees in the description.

Overall, the product stands out for its longevity and safety framing, though fit verification remains essential.

Who It’s For

This battery fits drivers seeking a reliable AGM replacement and who value sealed, maintenance-free operation. It suits vehicles with start-stop systems, frequent accessory loads, or higher vibration exposure where spill-proof construction can help. It also works well for shoppers who want professional-grade support from a long-established brand.

However, this option targets a specific group size, so MDX 2011 buyers must confirm the correct BCI size and terminal layout before purchase. Those uncertain about fit should use the compatibility guide and measure the old unit.

Purpose	Battery current sensor ground wire terminal connector
Length	16.73 in
Replacement Compatibility	Cross-references 32600-TK8-A04 and 32600-TK8-A02
Install Style	Plug-and-play replacement

What We Found

This item replaces the battery current sensor assembly cable on select Acura and related Honda applications. It lists fitment across Odyssey 2011-2013 and Acura TL, TLX, and MDX ranges, including Acura MDX 2012-2013, and it references replacement part numbers such as 32600-TK8-A04 and 32600-TK8-A02.

The core function involves measuring battery current to support accurate charging behavior and monitoring data. The listing claims precise sensoring and stable power transmission, emphasizing good current-carrying capacity for smooth starts while reducing battery wear. It also states the unit installs as plug-and-play and matches old equipment specifications.

A single ground wire terminal connector is included at about 16.73 inches. This product stands out as a targeted fix for charging-system behavior rather than a general battery replacement.

Who It’s For

This sensor cable suits Acura MDX owners dealing with charging issues traced to battery current monitoring, especially when warning lights or charging anomalies point toward sensor failures. It fits technicians or DIYers who can diagnose current-sensor related problems and want an exact cable replacement by OEM cross-reference.

Installation makes sense when a direct connector swap replaces worn wiring. Value comes from correcting monitoring accuracy without replacing the entire sensor assembly if only the cable is faulty. It may not help when the battery itself fails to crank, so diagnosis matters.

FCC ID	N5F0602A1A
Part Numbers	35111-STX-325 and 35111-STX-327
Compatibility Range	Acura MDX 2007-2013 and RDX 2007-2013
Programming Note	Self-programming requires two working original remotes

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What We Found

Keymall sells a complete keyless entry remote for Acura MDX 2007-2013 and RDX 2007-2013, tied to FCC ID N5F0602A1A and part numbers 35111-STX-325 and 35111-STX-327. The listing emphasizes that compatibility depends on verifying FCC ID, part numbers, remote buttons, and the key blade match.

Unlike battery-only replacements, this option includes battery, chip, remote board, and an uncut emergency key. It states the remote can self-program, but it requires two working original remotes for programming, and it notes that key cutting must be handled by a locksmith or dealer.

This product stands apart as a full replacement remote rather than a coin-cell fix. It solves cases where the key or transponder board fails, but it introduces complexity and extra steps.

Who It’s For

This remote suits Acura MDX owners who need a replacement fob unit because the original has failed beyond battery level. It also fits buyers who can confirm FCC ID and part-number match for MDX 2007-2013. It works best when two original working remotes are available for programming.

The value proposition centers on getting a complete remote and uncut key blade included, but it may not suit owners who only want a battery swap. For MDX 2011, it could be useful when electronic failure prevents normal keyless operation.

What to Look For Before Buying

Choosing the right Acura MDX 2011 battery replacement starts with identifying whether the issue involves the key fob or the main battery. For fobs, match the exact coin-cell code listed for your remote.

For the vehicle battery, confirm BCI group size, terminal polarity, and whether your driving pattern includes start-stop or many short trips. Also verify charging-system warning-light causes before replacing parts.

Check Confirm the battery type for your Acura key fob

Many Acura smart fobs use CR2032, but some designs differ by model and key style. Check the existing battery marking before purchasing. Use the product’s compatibility list and image guide to avoid flip-key mismatches. For weak range symptoms, replace batteries in both fobs if you own multiple remotes.

After installation, test lock and trunk functions from the driveway.

Value Match BCI group size and terminal layout for main batteries

AGM replacements can perform well, but only when they fit correctly. Compare the original battery’s BCI group size, dimensions, and terminal polarity. Verify left-negative and right-positive markings if the listing includes terminal layout. If the tray or cable reach does not match, performance will not matter.

Measure the old battery first, then compare to the replacement’s stated dimensions.

Rating Prioritize starting power and cycling claims for your driving habits

Cold weather reliability depends on CCA rating, while frequent short trips benefit from strong cycling capability. For start-stop vehicles, focus on AGM designs that specifically mention start-stop suitability. Look for reserve capacity ratings when you run many accessories. Be cautious with longevity claims, especially when rating data is missing.

Treat marketing multipliers as guidance, not guarantees.

Verify Diagnose charging warnings before swapping the wrong part

“Check Charging System” alerts can originate from a failing battery sensor or ground cable. Battery sensors measure current and help the ECU manage charging behavior. If diagnostics point to sensor faults, choose a replacement that matches OE part numbers and model-year range.

If the symptom is slow cranking, prioritize battery capacity and starting power. When unsure, test battery health and charging output before ordering parts.

Frequently Asked Questions

What battery does an Acura MDX 2011 key fob usually use?

Many compatible Acura smart remotes use a CR2032 coin cell, but the correct code depends on the exact fob design. Checking the battery marking inside the fob provides the fastest confirmation. Compatibility lists also exclude some models and flip-key styles, so picture verification matters.

If the current battery does not read CR2032, avoid ordering CR2032 kits.

How do you know whether to replace the main battery or the battery sensor for charging warnings?

Slow cranking or a battery that fails to start usually points to the main battery. Charging warning lights can indicate battery sensor or ground cable failures, especially when current monitoring data becomes inaccurate. Products that reference “Check Charging System” typically target sensor faults.

Battery health testing and basic charging checks help determine the correct part before replacement.

Do AGM batteries require maintenance on an Acura MDX 2011?

AGM batteries in these listings are described as maintenance-free and sealed with spill-proof VRLA technology. That generally means no electrolyte refilling for typical owners. Still, proper installation and cable cleanliness remain important for longevity. Confirm terminal polarity and tight connections to prevent charging issues.

Is remote reprogramming required after replacing a key fob battery?

Most coin-cell battery replacements claim no programming is required for smart remotes. This typically holds when only the battery changes and the remote electronics remain intact. Testing range and lock/unlock functions after replacement confirms success. If programming becomes necessary, it often relates to a different remote issue than battery replacement.

What should be verified before buying a replacement battery for the MDX 2011?

Verify BCI group size, physical dimensions, and terminal layout before purchase. Confirm the CCA rating meets or exceeds the original requirement. For start-stop or heavy accessory use, prefer batteries that mention cycling durability and reserve capacity.

If warning lights exist, confirm whether the root cause involves the battery or sensor components. When in doubt, measure the old battery and compare to listed specifications.

🎯 Final Verdict

For an Acura MDX 2011 main-battery replacement, Uplus BCI Group 48 AGM stands out for value and fit clarity, pairing 760CCA with maintenance-free sealed construction and start-stop orientation. For key fob battery issues, the CR2032 2-pack kit option provides a simple battery-only swap.

Choose based on symptoms, then confirm dimensions or fob battery code before checkout. Order the correct match and complete a quick post-install test for starts or remote functions.