Essay author here - they're readily available! It's just a CR2016.
ref: https://www.ifixit.com/Guide/Casio+F-91W+Battery+Replacement...
Essay author here - they're readily available! It's just a CR2016.
ref: https://www.ifixit.com/Guide/Casio+F-91W+Battery+Replacement...
Just a humorous jab :)
Whoa there buddies! Some people need to learn how to take a joke!