[Reason077]

> "Watt/hour battery is always decreasing"

This isn't always true. The 16" MacBook Pro, for example, has a 100 Wh battery, which is the largest that Apple has ever shipped in a laptop. This is the largest battery size permitted in cabin baggage on flights.

[phonon]

2015 15" Macbook Pro also had that (99.5 Wh).

https://support.apple.com/kb/sp719?locale=en_US