The Galaxy Note 20 phones are just a couple months away from launch at this point, and a new leak has now revealed even more information on the phone. It's hardly good news either, although there may be good reason for the choice.
https://www.notebookcheck.net/The-Samsung-Galaxy-Note-20-will-be-a-downgrade-on-the-S20-Ultra-in-one-important-aspect.466435.0.html
The battery leak says Secondary Battery, maybe this is for the new Fold and there is a battery in each side?