A weak key fob can interrupt an otherwise ordinary day, especially during a cold start or a hurried trip through a parking garage. Most Acura RDX owners need a CR2032 coin-cell replacement rather than a complete vehicle battery, but the listings vary in quantity, tools, and stated model coverage. Verify your fob shape and the battery marking before ordering.
A Snapshot Of The Selections
JHYMGND 38920TR0A02 Battery Replacement
ZIWLU Acura Key Fob Batteries, 2009-2024
Lucrum CR2032 Key Fob Batteries, 2-Pack
Lithdurcell Acura CR2032 Key Fob Battery 4-Pack
Key Battery Outlet Acura CR2032 Batteries, 2-Pack
KKNCO Acura CR2032 Battery and Tools 2-Pack
BBXSA Acura CR2032 Key Fob Batteries 2-Pack
Meet The Standout Selections
This listing takes a different path from the six CR2032 key-fob choices that follow. Its title identifies a 38920TR0A02 replacement associated with certain Honda Civic and Acura RDX model years, so treat the part number as the decisive reference rather than a general battery description.
For a garage or repair-shop workflow, that specificity can be more useful than a broad smart-key listing. You still need to confirm what the numbered component does on your exact vehicle, because the supplied information does not clearly establish that it is the coin cell inside the key fob.
Benefits That Matter
- The explicit 38920TR0A02 number supports a direct cross-reference against your damaged component.
- Honda Civic and Acura RDX coverage gives the listing a narrower, more purposeful scope.
- The stated replacement format suits owners who already recognize the original part.
Details To Watch
- The listing lacks a clear CR2032 designation, so do not assume it matches the key-fob choices elsewhere in this roundup.
- Part descriptions are limited, making image and fitment verification especially important before installation.
Core Details
Built With In Mind
This choice suits an RDX owner who has already identified the 38920TR0A02 component and needs a like-for-like replacement rather than a key-fob battery.
A Better Fit Elsewhere
Choose the BBXSA Acura CR2032 Key Fob Batteries 2-Pack instead when your goal is specifically to replace a CR2032 cell inside the remote.
Broad model coverage is the defining feature of the ZIWLU replacement set, spanning several Acura lines and model years from 2009 through 2025. That range is useful in a shared household where different vehicles may use similar four- or five-button smart remotes.
The key fob itself is not included, and the listing points you toward installation references for confirming the battery type. Depending on your remote, you may need a separate opening tool before reaching the coin-cell holder.
Useful Highlights
- Coverage across RDX, MDX, TLX, ILX, RL, and several other Acura names reduces cross-shopping between similar remotes.
- The stated 2009-2024 span includes many first- and second-generation RDX configurations.
- Four- and five-button smart-key references provide a useful visual starting point for fitment.
Where It May Fall Short
- The model-year range extends beyond the title, so you should compare the complete fitment chart rather than rely on the heading alone.
- Tool inclusion is not clearly established, making a plastic pry tool a useful separate addition for a careful opening job.
Made For
Shared-household Acura owners benefit most because the broad compatibility list can cover more than one remote design.
Another Choice May Suit
The Lithdurcell Acura CR2032 Key Fob Battery 4-Pack is a stronger fit for you when two included opening tools matter to the replacement process.
Two CR2032 cells give the Lucrum set a practical balance for an RDX with more than one compatible remote or a driver who prefers keeping a spare close at hand. A CR2032 is a 3-volt coin cell, so the model and diameter must match the marking inside your original fob.
Compared with the wider ZIWLU listing, Lucrum states fewer model years but provides a clearer capacity figure. That makes this package easier to assess for basic cell specifications, although the exact remote housing still deserves confirmation.
Everyday Advantages
- The stated 240mAh capacity gives you a concrete electrical specification to compare.
- Two cells cover an RDX plus a compatible second key or leave a spare for the next replacement.
- The stated RDX coverage runs from 2013 through 2021 for listed CR2032 applications.
Points To Note
- Several listed Acura applications use different battery types, so verify CR2032 before opening the fob.
- No opening tool is clearly included, making a non-marring pry tool a sensible addition.
Feature Snapshot
The Right Fit
This two-pack suits an RDX owner in the listed 2013-2021 range who has confirmed a CR2032 battery inside the remote.
Reach For A Different Pick When
Choose the KKNCO Acura CR2032 Battery and Tools 2-Pack when you prefer a bundle with dedicated opening tools.
The Lithdurcell package concentrates on maintenance convenience with four CR2032 cells, two pry tools, and an installation guide. That combination works well for a family with several compatible Acura keys or for anyone who prefers keeping spare cells on hand rather than scheduling another battery change soon.
Its listed RDX coverage extends from 2010 through 2025, wider than the Lucrum package. You still need to match the physical battery marking because model-year coverage alone cannot account for every fob revision.
Good Reasons To Consider
- Four cells provide useful inventory for multiple keys, a second Acura vehicle, or future changes.
- Two included pry tools reduce the chance of scratching a housing with a knife or screwdriver.
- The guide supports a careful do-it-yourself swap without requiring remote programming.
Trade Offs
- The four-cell quantity may be more than a single-fob owner needs, especially if the spare cells remain unused for years.
- Claimed low-temperature operation does not eliminate the need to confirm exact fob compatibility.
Right Fit For
This kit best suits multi-key households and Acura owners who value both spare cells and non-marring opening tools.
Where A Sibling Pick Shines
The Lucrum CR2032 Key Fob Batteries 2-Pack is more proportionate for one vehicle with two compatible keys.
Key Battery Outlet keeps the package uncomplicated: two 3-volt CR2032 cells for compatible Acura smart keys. That makes it a sensible starting point for an RDX owner who has already opened the remote or can clearly see the battery designation.
The listed range covers RDX models from 2010 through 2025, but the battery fitment guide remains the more reliable check. Compared with Lithdurcell, this set is easier to carry for a single vehicle, though it does not provide the same tool-led convenience.
Positive Points
- Two cells cover an RDX’s compatible keys without creating unnecessary extra inventory.
- The 3-volt CR2032 format gives you the key details needed for a quick visual match.
- The broad Acura model list includes RDX, TLX, MDX, ILX, and several other key-equipped models.
Small Caveats
- Tools are not clearly included, so use a proper plastic pry tool to reduce housing scratches.
- Some remote shells look nearly identical while using different cell sizes, making the fitment guide important.
Key Attributes
Who Will Love This
This option appeals to an RDX owner with two compatible keys who wants a simple replacement and no tool bundle.
Consider Something Else When
Pick the Lithdurcell Acura CR2032 Key Fob Battery 4-Pack instead when you need four cells and two pry tools.
The KKNCO bundle pairs two CR2032 batteries with opening and pry tools, which makes it approachable for someone completing a first key-fob battery change. You can support the housing seam and lift the battery retainer without forcing a metal edge into the plastic.
The listing explicitly excludes the remote itself, so this is a battery-and-tools package rather than a replacement key. RDX is included in the fitment coverage, but you should review the guide because remote shapes can change across model years and trims.
Notable Upsides
- Opening tools make the package more self-contained than the two-cell-only Lucrum and Key Battery Outlet sets.
- Two batteries cover compatible primary and backup keys in one maintenance session.
- Remote programming is not required for the stated battery-only replacement procedure.
Worth Noting
- The remote housing is not included, so an already-damaged fob requires a separate solution.
- The broad model list cannot replace checking the battery marking inside your exact RDX key.
Who Should Grab It
First-time key-fob maintainers benefit most from the included tools and straightforward two-cell format.
Swap It Out When
The BBXSA Acura CR2032 Key Fob Batteries 2-Pack is a better fit when you already own suitable opening tools.
BBXSA offers two replacement cells and places fitment confirmation at the center of the purchase decision. That approach suits an RDX owner comparing a remote against the listing images before opening the housing or handling the coin cell.
The stated 2009-2024 Acura range is broad, and the included guide addresses a simple replacement without remote programming. Compared with the KKNCO package, you may need to supply your own opening tool, but the two-cell quantity remains convenient for paired keys.
Real-World Strengths
- Listing-image checks help reduce the risk of confusing similar-looking smart remotes.
- Two cells let you maintain both compatible keys during a cold morning or before a longer trip.
- The stated 2009-2024 range provides a useful baseline for many Acura smart-key applications.
Honest Caveats
- The battery diameter and thickness must still match the cell marked inside your fob.
- No included pry tool is clearly stated, so use a plastic opener to protect the housing.
Quick Facts
Best Suited To
This set suits cautious first-time owners who want to compare the remote shape and battery marking before opening it.
A Better Fit Elsewhere
The KKNCO Acura CR2032 Battery and Tools 2-Pack better serves you when you want the batteries and opening tools in one package.
Matching The Battery To Your RDX
Start with the battery marking inside your existing key fob. A CR2032 is a 3-volt coin cell, but visually similar Acura remotes can use other sizes, and a broad model-year range does not guarantee that every trim received the same remote.
Next, compare the fob shape with the listing images. Your 2013-2021 RDX falls within several CR2032 sets, yet the shell design and button layout still provide the stronger confirmation. Never force a battery into a holder with a different diameter or thickness.
For the installation, a plastic pry tool and a small screwdriver can handle most listed smart-key housings. Work away from the circuit board, support the seam, and keep metal tools from bridging contacts. The stated procedures require only a battery swap, not remote programming.
Quantity comes last. Two cells suit a vehicle with two compatible keys, while four cells make more sense for a multi-Acura household. Store spare lithium cells in their original packaging and away from moisture, heat, and children.
Fitment Details That Matter Most
Common Shopping Slip Ups
Do not assume every Acura smart key uses a CR2032. Start with the printed battery code inside your RDX fob, then confirm the remote shape against the fitment images. Model-year ranges alone can be too broad to establish the exact cell, particularly across trims and production changes.
What The Higher Tier Buys
The larger sets add more spare cells, while the tool bundles add pry implements for a cleaner opening job. Those extras matter most for multi-key households and first-time maintainers. A two-pack remains the more proportionate option for one RDX with two compatible remotes.
Frequently Asked Questions
What battery does an Acura RDX key fob use?
Many listed RDX applications use a 3-volt CR2032 coin cell. Check the marking inside your existing fob because battery types can differ between remote designs.
Do I need to replace the whole key fob?
Usually, a listed CR2032 replacement addresses the cell inside the remote. Replace the complete fob separately only when its housing, buttons, circuit board, or shell has physical damage.
Do I need to program the remote after changing its battery?
The listed replacement procedures state that programming is not required. A battery-only change should restore normal operation after the new cell is installed correctly.
Can I use a CR2032 from another device?
You may use a compatible coin cell, but confirm the 3-volt rating, diameter, and thickness. Keep the replacement clean and install it with the positive side facing the contact shown in the battery holder.
How many key fob batteries should I buy?
Two cells cover a typical RDX with two compatible keys. Choose a four-pack for multiple Acura vehicles or spare inventory, and store unused cells in their packaging.
The Takeaway
Most RDX owners need a CR2032 key-fob cell, not the part-numbered JHYMGND component. Choose based on verified fitment, then decide whether a two-pack, four-pack, or tool bundle matches your keys. Confirm the battery code before opening the remote, and replace the cells carefully.
