Key Fob Battery?
- Thread starter Marcozi
- Start date
My 2020 Pilot uses a CR2032
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It takes a CR-1616 lithium battery as shown in the video below. Note that some of the fobs were assembled with Loctite on the miniature screw. I had to apply heat (butane lighter to heat up the Phillips screwdriver tip) repeatedly to remove it.
Wow! That was quick. Thanks!
On most modern cars you can still start the vehicle on a dead key fob battery but you can't use the remote. The fob normally comes with a spare key inside it. The down side if your vehicle has an alarm, the only way to stop the alarm is to start the engine.
Timely post. Very recently finished replacing the CR1616 batteries in two 07 Accord key fobs. One of the fobs also required fob shell replacement, because of common cracking of the plastic at the screw area. Mission accomplished on batteries and new key fob shell.
My daughter's 2009 CR-V has a key fob that's taped up, but can't last much longer. I didn't realize you can just buy the shell and not have to get a new key fob, have the key cut, and program it. Having the capability to program new Honda key fobs/fobs was part of my excuse for buying a fancier scan tool within the past couple of months. The daughter had already told her Mom how much the dealer would charge to replace it, so I stepped up and offered to get the scan tool and we'd be set for programming all our own Honda fobs.
You can take the battery out and look at it.
Yeah, used the second never used fob while I researched my options. Watched a lot of you tubes on shell replacement and very recently bought a shell kit off Amazon. There's tons of kits advertised on Amazon and ebay. Biggest thing with 07 is transferring the transponder/transmitter chip. With some care the shell replacement went fine.
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CleanSump
Site Donor 2026
Common sense has no place in the web world.
Honda fobs are set to self destruct 30 seconds after opening!
Little rubber pads everywhere!
Little rubber pads everywhere!
Or remove the wire from the negative pole of the battery maybe.
- Joined
- Jan 16, 2023
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- 745
Far too convenient to have a selection of coin type batteries on hand
For what they cost
For what they cost
Patman
Staff member
If you’re ever uncomfortable opening up a fob and replacing the battery, go to one of those watch repair places you often see in malls. They probably are dying for the business these days and they would certainly have the right batteries in stock for it too.
The first two digits in CR1616 are the battery diameter in MM, so the 16 means 16mm. The second two are the height in 1/10s of mm, so 1.6mm.
If you look at your key and imagine the battery size, it can get you close if you don't want to open it ahead of time.
And realistically, these batteries are either 16 or 20mm in diameter.
If you look at your key and imagine the battery size, it can get you close if you don't want to open it ahead of time.
And realistically, these batteries are either 16 or 20mm in diameter.
I appreciate everyone's comments. I've ordered the correct battery which should be delivered today. I found tgis website that will show you which battery is in your key fob: https://www.microbattery.com/key-fob-battery-finder.
