What causes the battery health percentage to drop?
Using the battery. Not using the battery. Keeping it charged at 100%. Keeping it charged at 80%. Letting charge drop to 20%. Letting charge drop to 0%. Keeping it charged at 50%. Using it too often. Not using it enough. Letting the computer get too hot. Letting the computer get too cold. Letting the computer temperature change too quickly. Using the computer on a Tuesday. Not using the computer on the third Thursday of the month. Just ****ing use it to do what you want to do and don’t worry about. (Because the battery can sense your worry, which causes it to degrade much quicker.)