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20 Best 2017 Honda Civic Hatchback Key Fob Battery of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 2017 Honda Civic Hatchback Key Fob Battery of 2023. Check our ranking below.

2,609 Reviews Scanned

Rank No. #1

RemoteOverstock CR2032 2032 Battery (2 Pack) - Original OEM Replacement for Honda Key Fobs - Includes Pry Tool & Installation Video

Bundle of Two (2) CR2032 Remote Fob Battery and Opening/Pry Tool] - Two item bundle (total 3pcs)
[Original OEM Battery as Provided by Manufacturer] – Same batteries as provided by OEM original manufacturer in all (3, 4, 5, 6, or 7 button) Smart Key remote fobs.
[Avoid a Service Appointment for Battery Replacement] - Battery replacement is simple and remote reprogramming is not required
[Pry Tool Included to Assist with Battery Change] - Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.
[Step-By-Step Installation Video Included] - Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure

Rank No. #2

LiCB 5 Pack CR1632 Battery, Long-Lasting & High Capacity CR 1632 Lithium Batteries for Car Remote & Key Fob,3V Coin & Button Cell

SAFE AND RELIABLE: LiCB Since 2006,Specialize in Battery 12 Years. CR1632 Button Coin Cell Tested under Strict Quality Control Standards. CE and ROHS Certified. Grade A cells CR 1632 Car Remote Batteries Ensure Longer Battery Life and Long Lasting Power.
Long-Lasting AND COST-SAVING:Get the 5 PCS Exact Fresh CR1632 Battery, Have Full 3 Volts Charge, 3 Years Shelf Life
Safety AND LEAK FREE -- Zero Mercury LiCB CR1632 Batteries Offer Premium Performance in a Variety of Devices. LiCB Batteries are Designed not to Leak in Devices During Their Usage and for up to 3 Years after They are Left in a Device.
MULTIPLE COMPATIBILITY : Equivalent to other Brand Models, Like CR1632 , BR1632 , DL1632 , ECR1632 ,1632 , KCR1632 , LM1632 , DL 1632 and Works Perfect for Remote Control, Watch, Calculator,Electronic Notebook,Thermometer, Mobile game.
What You Get: 5 PCS CR1632 Batteries in Exact Blister Pack.18-month Warranty and Friendly Customer Service.

Rank No. #3

(2 PACK) CR2032 2032 Remote Key Fob OEM Battery for Smart Key Keyless Fob fits 2013-2021 for Honda Accord Civic Odyssey CR-V HR-V Fit Pilot Clarity with FCC ID: KR5V2X, CWTWB1G0090, etc Proximity Prox

[Bundle of Two (2) CR2032 Remote Fob Battery and Opening/Pry Tool] - Two item bundle (total 3pcs)
[Original OEM Battery as Provided by Manufacturer] – Same battery as provided by OEM original manufacturer in all (3-7 button) SMART KEY remote fobs. (Refer to product images to confirm compatibility)
[Avoid a Service Appointment for Battery Replacement] - Battery replacement is simple and remote reprogramming is not required
[Pry Tool Included to Assist With Battery Change] - Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.
[Step-By-Step Installation Video Included] - Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure

Rank No. #4

CR2032 2032 REMOTE KEY FOB BATTERY OEM Replacement Compatible with Honda 2013-2021+ Accord Civic Odyssey CR-V HR-V Fit Pilot Prox Smart Key Fob fits with FCC ID KR5V2X - (W. INSTRUCTIONS)

Bundle of One (1) CR2032 Remote Fob Battery and Opening/Pry Tool] - Two item bundle
[Original OEM Battery as Provided by Manufacturer] – Same batteries as provided by OEM original manufacturer in all (3, 4, 5, 6, or 7 button) Smart Key remote fobs.
[Avoid a Service Appointment for Battery Replacement] - Battery replacement is simple and remote reprogramming is not required
[Pry Tool Included to Assist with Battery Change] - Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.
[Step-By-Step Installation Video Included] - Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure

Rank No. #5

LiCB 5 Pack CR1620 Battery, Long-Lasting & High Capacity CR 1620 Lithium Batteries,3V CR1620 Coin & Button Cell for Car Remote & Key Fob

SAFE AND RELIABLE: LiCB Since 2006,Specialize in Battery 12 Years. CR1620 Button Coin Cell Tested under Strict Quality Control Standards. CE and ROHS Certified. Grade A cells CR 1620 Ensure Longer Battery Life and Long Lasting Power.
Long-Lasting AND COST-SAVING:Get the 5 PCS Exact Fresh CR1620 Battery, Have Full 3 Volts Charge, 3 Years Shelf Life.(
SAFETY AND LEAK FREE -- Zero Mercury LiCB CR1620 Batteries Offer Premium Performance in a Variety of Devices. LiCB Batteries are Designed not to Leak in Devices During Their Usage and for up to 3 Years after They are Left in a Device.
MULTIPLE COMPATIBILITY : Equivalent to other Brand Models, Like 1620 , CR1620 , DL1620 , ECR1620 , BR1620 , DL 1620 and Works Perfect for Car remote , Key Fob , Remote Control , Watch, Calculator , Electronic Notebook, Thermometer, Mobile game.
What You Get: 5 PCS CR1620 Batteries in Exact Blister Pack.18-month Warranty and Friendly Customer Service.

SaleRank No. #6

Key Fob Remote Replacement Fits for Honda CRV 2017 2018 2019 2020 / Civic (5-DOOR HATCHBACK) 2017-2021 MLBHLIK61TA Keyless Entry Remote Control 4 Button Head Key 35118-TLA-A00 35118-TGG-A00(Pack of 1)

★HIGH-QUALITY: Every Single Keyless Entry Remote Control Car Key Fob Is Fully Pre-tested by Professional Locksmith Tools before Shipping. All Our Key Fobs are Pre-installed with Battery and Electronics.
★COMPATIBILITY: This Keyless Remote Control Car Key Replacement Is Compatible with Part Numbers: 35118-TLA-A00, 35118-TGG-A00 and FCC ID:MLBHLIK6-1TA. Chip:ID47 (G is on the blade)
★REPLACEMENT: This Remote Fob Key Replacement Is Compatible with 2017-2020 Honda CR-V and 2017-2021 Honda Civic (5-DOOR HATCHBACK). Please Check Our Product Description and Vehicle Fitment Tool for Full Compatible Vehicles List.
★PROGRAMMING: This Remote Head Key Fob Must Be Cut and Programmed by a Qualified Locksmith or Dealership.This Transmitter Doesn't Work on Push Start Button Vehicles and it only Supports Regular Key Vehicles.
★PACKING LIST: 1 X 4 Button Keyless Entry Ignition Remote Key with Electronics and Battery Pre-Installed. 100% Brand New Remote Key Fob and Ready to Program.

Rank No. #7

Key Fob Remote Replacement Fits for Honda Civic 2016 2017 2018 2019 2020 2021 KR5V2X Smart Proximity Keyless Entry Remote Control Uncut 5 Buttons 433Mhz (72147-TBA-A11)

★HIGH-QUALITY: Every Single Keyless Entry Remote Control Car Key Fob Is Fully Pre-tested by Professional Locksmith Tools before Shipping. All Our Key Fobs are Pre-installed with Battery and Electronics.
★COMPATIBILITY: Compatible with FCC ID KR5V2X. Please Check Our Product Description and Vehicle Fitment Tool for Full Compatible Vehicles List. This Remote Key Fob Replacement Is Compatible with 2016-2021 Honda Civic (EX LX).
★REPLACEMENT: This Smart Keyless Entry Remote Control Key Replacement Is Compatible with Part Numbers: 72147-TBA-A11, 72147-TBA-A12, 72147-TBA-A121-M1 and FCC ID: KR5V2X. Chip: 47. Uncut HO01 emergency insert included a replacement for PN: 35118-T2A-A50.
★PROGRAMMING: This Smart Remote Fob Key Must Be Cut and Programmed by a Qualified Locksmith or Dealership. This Transmitter Only Supports Push Start Button Vehicles/Proximity Key, and It Doesn't Support Regular Keys.
★PACKING LIST: 1 X 5 Button Keyless Remote Fob Smart Proximity Car Key Fob with Electronics & Battery Pre-Installed & Insert Key Emergency Blade Is Included. 100% Uncut Brand New Smart Remote Key Fob and Ready to Program.

Rank No. #8

fits 2016 2017 2018 Honda Civic CR-V Pilot Smart Key Fob Keyless Entry Remote (KR5V2X)

Replacement aftermarket part for P/N: KR5V2X, 7812D-V2X
Uncut insert key included
Complete electronic assembly with battery
Dealer/locksmith programming required
fits 2017-2018 Honda Civic / 2017-2018 Honda CR-V / 2016-2018 Honda Pilot

Rank No. #9

(2 Pack) CR2032 2032 Compatible with Honda OEM Original Battery for Smart Key Remote Keyless Fob fits 2015-2021 Accord CR-V Civic Pilot FCC ID: ACJ932HK1310A Proximity Prox fits 3, 4, 5, 6, 7 Buttons

2 PACK BATTERY with Opening/Pry tool for 3, 4, 5, 6, and 7 Button 2015-2021 Smart Key keyless entry smart key fobs (2 Item bundle – 3pcs).
ORIGINAL OEM Battery as provided by and Compatible with Honda 2015-2021 Smart Key Remotes (that look identical to the remote shown in the listing photo).
OPENING/PRY TOOL INCLUDED – To assist in opening remote or removing remote battery cover and battery from battery compartment.
EASY TO INSTALL and remote reprogramming not required after installation. Batteries comes individually sealed in blister packaging and 5-10 year future expiry. Guaranteed fresh and long-lasting batteries. 3v Coin Battery

Rank No. #10

CR2016 Batteries 3V Lithium Cell - 3 Volt CR 2016 Coin Button Lithium Battery for Toyota Camry Rav4 Car Key Fob Remote Control LED Light Candles Garage Door Opener Monitor Bathroom Scale (5 Pack)

Superior Quality: Produced According to International Battery Standards. Each Unit Test before Pack. All Brand New A Grade Batteries Guaranteed. UL, CE and RoHS Certified
Long-Lasting Batteries Designed for Dependability: 10 Years Storage Shelf Life. 165mAh Capacity is 10% more than standard CR2016. Kitosun Lithium coin batteries deliver the long-lasting power and performance you can count on for electronic devices throughout the home or on-the-go. You can be confident these batteries will be ready when you need them
Child-Secure Packing makes Kitosun Lithium Coin battery packaging nearly impossible to open without scissors. Great for storage safety. Zero Risk of Leakage, Short Circuit or Rust. 5pcs CR2016 Batteries Sealed in Each Card. You never make a mess
Reliable Power : The Kitosun 2016 3V Lithium batteries power both daily and essential home devices, Primarily used for Toyota car key fobs remote control, toyota Camry key fob, glucose monitors, cr2016 watch battery, thermometers, Watches, Computer motherboards, Calculators, Car keyless entry remote key, Electronic organizers, Garage door openers, Games, MP3 players, Digital voice recorders, Door chimes, Dog collar light, Battery LED Tea Lights Candles, Blood Sugar Test Machine, Sporting Stuffs, Pedometers, Calorie counters, Stopwatches, Glucometers, Medical devices and many more
Compatibility: works in devices using CR2016, ECR2016, DL2016, LM2016, 2016, KCR2016, BR2016 and Works Perfect for Remote Control, Watch, Calculator , Electronic Notebook, Thermometer, Mobile game

Rank No. #11

(2 Pack) CR1620 1620 Remote Key FOB OEM Replacement (2013-2020) for Honda Accord Civic Crosstour Fit Remote Fob Case Shell Cover with Tool (FCC ID: MLBHLIK6-1TA 1T and P/N’s: 35118-T2A-A60, TY4-A00)

Bundle of Two (2) CR1620 Remote Fob Battery and Opening/Pry Tool] - Two item bundle (total 3pcs)
[Original OEM Battery as Provided by Manufacturer] – Same batteries as those provided by OEM original manufacturer in all (3 or 4 button) remote head key fobs. (Refer to product images to confirm compatibility)
[Avoid a Service Appointment for Battery Replacement] - Battery replacement is simple and remote reprogramming is not required
[Pry Tool Included to Assist with Battery Change] - Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.
[Step-By-Step Installation Video Included] - Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure

Rank No. #12

Replacement Keyless Entry Remote Control Key Fob Shell fit for Honda Accord Civic CR-V CRV Pilot Passport Insight EX EX-L Touring.Part Number:HYQ12BDM(5 Buttons) (Key Shell)

This product has high-quality materials, a perfect shape, and a good touch. Allows you to save hundreds of dollars and replace it with a new remote control car key.Package Include: 1 key shell and 1 304 stainless steel keyrings
Easy installation which does not require reprogramming.
Best replacement key shell for broken or worn keys, or great for an additional key.
This is a replacement part to match the original in form and function.electronic hardware not included.
Fit for 2015-2021 Honda Accord Civic CR-V Pilot Insight Passport. Part Number：ACJ932HK1310A KR5V2X A2C92005700 A2C81642600 216J-HK1310A HK1310A

Rank No. #13

Beefunny Replacement Remote Car Key Shell Case Fob 5 Button for Honda Civic 2016-2018 - KR5V2X (1)

NO interior (remote/electronics/transponder chips/battery) unit inside.
You can easily move the internal components from your old case to this new replacement shell.
The blade need to be cut at a local locksmith.
Compatible with: for Civic 2016-2018
Package Content: 1 Pcs remote key shell

SaleRank No. #14

Key Fob Remote Replacement Fits for Honda Civic 2016 2017 2018 2019 2020/Accord 2016-2017 MLBHLIK6-1TA Keyless Entry Remote Control Uncut 4 Buttons 433Mhz (35118-T2A-A60)

★HIGH-QUALITY: Every Single Keyless Entry Remote Control Car Key Fob Is Fully Pre-tested by Professional Locksmith Tools before Shipping. All Our Key Fobs are Pre-installed with Battery and Electronics.
★COMPATIBILITY: Compatible with FCC ID MLBHLIK6-1TA. Please Check Our Product Description and Vehicle Fitment Tool for Full Compatible Vehicles List. This Remote Key Fob Replacement Is Compatible with 2016-2020 Honda Civic & 2016-2017 Accord.
★REPLACEMENT: This Keyless Entry Remote Control Car Key Fob Replacement Is Compatible with Part Numbers: 35118-T2A-A60 and FCC ID: MLBHLIK6-1TA.
★PROGRAMMING: This Remote Key Fob Replacement Must Be Cut and Programmed by a Qualified Locksmith or Dealership. This transmitter doesn't work on push start Button Vehicles.
★PACKING LIST: 1 X Keyless Entry Remote Control Car Key Fob with Electronics and Battery Pre-Installed. 100% Uncut Brand New Remote Key Fob and Ready to Program.

Rank No. #15

CR2016 3V Lithium Coin Battery – 15 Pack CR 2016 Cells Batteries 3 Volt for Car Remote Control Toyota Camry RAV4 Key Fob Timex Watch Garage Door opener Sensor LED Candles Light Kid Toy Replacement

Premium Afoosoo CR2016 Batteries - Strict manufacturing and quality control standards ensure a long battery life and a long shelf life. CE and ROHS Certified.
Safety Package CR2016 Batteries Set: The battery packaging with a blister is a CHILD-SAFE PACKING, designed to ensure that it is virtually impossible for a child to open it without the use of scissors. There is a reserved opening on the back of the battery cards - adults can easily remove the batteries. Also, the card packaging with blister will help with safe storage.
Long Battery Life High Power CR2016 Lithium Button Battery Set: 3 Volts and 85mAh high capacity coin battery, ensure Longer Battery Life and Longer Lasting Power than other standard CR2016 Batteries. Guaranteed 10 years long shelf life.
Wide Daily Use: Primarily used for car remote control, Toyota car key fob, Toyota 4Runner 2018 key fob, Truck car key fob, Smart Car 451 passion Key Fob, Highlander car key fob, 2016 rav4 car key fob, Nissan Pathfinde car key fob. Camry car key fob, GMC car key fobs, garage door opener sensor, dogs light, Lit dog collar batteries, kardia mobile heart monitor, Timex Watch battery, Gate remotes, keyboard , Boogie board, Children toys.
Equivalent Models: BR2016, BR2016, DL2016, LM2016, KCR2016, ECR2016.

Rank No. #16

Panasonic CR1616 3V Coin Cell Lithium Battery, Retail Pack of 2

Original replacement battery for car remotes, RKE(remote keyless entry), watches, fitness and healthcare devices, and other electronic devices
Long durability, ideal temperature tolerance
Panasonic durability and technology
Excellent storage capacity

Rank No. #17

LiCB CR1616 Battery,Long-Lasting & High Capacity CR1616 Lithium Batteries,3 Volt Coin & Button Cell (5-Pack)

SAFE AND RELIABLE: LiCB Since 2006,Specialize in Battery 12 Years. CR1616 Button Coin Cell Tested under Strict Quality Control Standards. CE and ROHS Certified. Grade A cells CR1616 Ensure Longer Battery Life and Long Lasting Power.
Long-Lasting AND COST-SAVING:Get the 5 PCS Exact Fresh CR1616 Battery, Have Full 3 Volts Charge, 3 Years Shelf Life.
Safety AND LEAK FREE -- Zero Mercury LiCB CR1616 Batteries Offer Premium Performance in a Variety of Devices. LiCB Batteries are Designed not to Leak in Devices During Their Usage and for up to 3 Years after They are Left in a Device.
MULTIPLE COMPATIBILITY : Equivalent to other Brand Models, Like 1616 CR1616 DL1616 ECR1616 BR1616 and Works Perfect for Remote Control, Watch, Calculator,Electronic Notebook,Thermometer, Mobile game.
What You Get: 5 PCS CR1616 Batteries in Exact Blister Pack.18-month Warranty and Friendly Customer Service.

Rank No. #18

Coolbestda Silicone Key Fob Cover Case Skin Jacket Holder Full Protector for 2018 2019 2020 2021 Honda Accord Civic CR-V CRV Pilot EX EX-L Touring Premium A2C81642600

Compatible with 2021 2020 2019 2018 2017 2016 2015 Honda Accord Civic CR-V CRV Pilot EX EX-L Touring Premium 5 buttons smart key. Protecting your expensive key fob from damage, marks, and dust. This item is a cover for your key fob, not the KEY FOB, pls noted.
High quality food level silicone material, healthy and safety for you and your kids.
This cover can only fit the 5buttons SMART honda key fob, NOT fit the FLIP/FOLDING key fob, pls check your key fob with the item carefully before you place the order.
This cover is full covered protector, it will not allow you use the valet key if you not pull off the cover,also will not slipping off at the same time, pls noted.
Sport custom and impressed design, make your car key easy find and look cool, easy to identify your key, never mixup with others. Perfect fit & Excellent Function,key signal does not be affected. Small insurance for a very expensive honda key fob. Excellent touch feeling and stylish, buttons still have great feel and work the same.

SaleRank No. #19

Duracell CR2016 3V Lithium Battery, Child Safety Features, 4 Count Pack, Lithium Coin Battery for Key Fob, Car Remote, Glucose Monitor, CR Lithium 3 Volt Cell

BITTER TASTE DISCOURAGES SWALLOWING: Non-toxic, bitter coating helps prevent accidental ingestion.
CHILD SECURE PACKAGING: Nearly impossible to open without scissors.
LONG-LASTING POWER: Reliable and efficient power for devices like key fobs, remote controls, thermometers, and many others.
GUARANTEED 10 YEARS IN STORAGE
No.1 TRUSTED BATTERY BRAND

SaleRank No. #20

FEYOUN Key Fob Cover Compatible with Honda Accord Civic CR-V Insight Passport Pilot Smart 5 Buttons TPU Remote Keyless Key Fob Case Protection Shell Accessories, White

Fit for Vehicles - Compatible with Honda Accord Civic CR-V Insight Passport Pilot Smart 5 Buttons Key. Please reconfirm your fob key with 2nd image before order.
Protection - Front and back sides coverage protection for your expensive fob, prevents your keys from drops, bumps, breakage and scratches.
Stylish Design - With luxury golden edges, the key case adorns you key like new and stylish, not affect the fob signals and key performance.
Material - Made of flexible and durable TPU with smooth touch feeling, it is 1:1 mould opening with precise buttons position, custom-made for your fob.
Package Included - a TPU key fob case. Note :The product not included the key. Any questions, please rest assured and feel free to contact us via Amazon Message.

Last update on 2023-09-16 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best 2017 Honda Civic Hatchback Key Fob Battery?

Do you get stressed out thinking about shopping for a great 2017 Honda Civic Hatchback Key Fob Battery? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 2017 Honda Civic Hatchback Key Fob Battery, which is why we have assembled a comprehensive list of the greatest 2017 Honda Civic Hatchback Key Fob Battery available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 2017 Honda Civic Hatchback Key Fob Battery that you consider buying. Your questions might include the following:

Is it worth buying an 2017 Honda Civic Hatchback Key Fob Battery?
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Potential sources can include buying guides for 2017 Honda Civic Hatchback Key Fob Battery, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 2017 Honda Civic Hatchback Key Fob Battery. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an 2017 Honda Civic Hatchback Key Fob Battery buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 2017 Honda Civic Hatchback Key Fob Battery currently available on the market.

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Brand Value: Every brand of 2017 Honda Civic Hatchback Key Fob Battery has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 2017 Honda Civic Hatchback Key Fob Battery?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 2017 Honda Civic Hatchback Key Fob Battery.
Customer Ratings: Number ratings grade 2017 Honda Civic Hatchback Key Fob Battery objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 2017 Honda Civic Hatchback Key Fob Battery.
Product Quality: You don’t always get what you pay for with an 2017 Honda Civic Hatchback Key Fob Battery, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 2017 Honda Civic Hatchback Key Fob Battery is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining 2017 Honda Civic Hatchback Key Fob Battery information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 2017 Honda Civic Hatchback Key Fob Battery is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: How do you change the battery in a Honda FOB?

A: How to Change the Battery in a Honda Key Fob First, find the button that releases the key inside of the fob. Slide this button, and move the key out of the fob. Then, insert the key in the slot at the key fob’s top. Twist the key, and press away from the key until the back of the fob comes off.

Q: What kind of battery do I use in my key fob?

A: Your car’s key fob battery powers the fob that makes taking your car for a drive much more convenient. It operates your vehicle’s power locks, remote start, and sometimes it may be needed to drive the vehicle at all. The most common types are CR2025 and CR2032 3-Volt batteries.

Q: How do I change the battery in the key fob?

A: Use the device to gently pry apart the two halves of the key fob. Remove the green circuit board out of the back of the case using your device. The back of the circuit board houses the battery. To change, gently pry out the battery and replace with a new CR 2032 3V battery, negative side down.

Q: Do car key fobs have batteries?

A: Yes, they have batteries to operate door functions. The key fob has a battery. The key itself does not. Transponder (aka “chipped”) keys receive electromagentic energy from the induction coil in a car’s ignition to power the chip to emit the proper encoded signal back to the car’s immobilizer.