If you wanna go deep on this:    • STOP Charging Your iPhone Past 80%!  

It's finally here! The proof that you should never charge your iPhone Over 80%! Apple finally confirms that with a feature called 80% Limit on the iPhone. Here's Everything you Need to know! Hope U Enjoy!

Sources:
https://support.apple.com/en-us/HT210512
https://support.apple.com/en-us/HT213338