It's so simple to change the battery in your BMW key fob, once you know how to do it. Well, I'm here to show you how! All you need is a small screw driver, a replacement CR2450 battery and one minute! I had a difficult time finding the proper battery in stores, so I bought. mine on Amazon. I'll include the link in case you need it.
No you can replace the battery in your BMW remote with ease!

CR2450 batteries
https://amzn.to/3OqNHeg

Check out my channel @ryanetotherescue for lots of other helpful howto videos!
Have a great day and drive safe!
Ryane