https://wccftech.com/entry-level-13-inch-macbook-pro-teardown/

It didn’t take long for the entry-level 13-inch MacBook Pro teardown to come forth since Apple updated its notebook lineup just a couple of days back. The new machine features a lot of changes on the inside, which iFixit has pointed out in its meticulous teardown process. By incorporating a Touch Bar and Touch ID, Apple had to make numerous changes to the MacBook Pro’s innards to make sure that the machine doesn’t compromise on performance and battery life.

The biggest and perhaps a highly welcoming change was the increase in battery capacity. The latest MacBook Pro teardown reveals that the machine features a decent 58.2W/hr capacity, making it slightly bigger than the 54.5W/hr cell found in the previous-generation non-Touch Bar model. The increase in capacity was most likely done to fuel the Touch Bar, Touch ID, and T2 chip while maintaining the same impressive 10-hour battery life of the notebook. An additional interesting fact about the battery capacity revelation is that 2019 13-inch MacBook Pro features a smaller 58W/hr battery, but in comparison, that difference can be treated as insignificant.