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Currently, I do not have access to the car's owner's manual. Could someone please verify the specific kind of battery needed?

Thank you in advance.

If you own the key fob and it is equipped with keyless entry functionality, opening it is very simple by using the included mechanical key, akin to a screwdriver, and inspecting the battery status is essential.

The battery model is CR1632.

You may replicate his actions with the knife using the key blade instead.
The design is quite intelligent and well-executed.

Exceptional, Thank you.

I have been receiving notifications indicating a low battery level for a considerable period of time. I purchased CR1632 batteries from Amazon, which were sent by Go Green Batteries. The batteries were delivered with an expiration date of 2032.

If anybody is interested. The user is referring to two Energizer CR1632 3V lithium coin cell batteries that are used for car keys and key fobs. The provided link is https://amzn.eu/d/0qJYte2.

Occasionally, I have discovered that a Battery of comparable dimensions also works well. Regarding my key fob, I believe it requires a 2032 battery. However, since I didn't have a spare of that specific battery, I attempted to use a 2025 battery instead, which was somewhat slimmer but still functional.

The smartkey of the Mk4 vehicle is equipped with a large and powerful CR2450 cell.

I have never had an item that required such a large cell before!

I too changed my battery with a CR2032 a few months ago and it is functioning well.

The size of the object is rather large, resembling that of a power bank meant for jump starting a 12v battery when it becomes depleted.