This article below is the latest buzz on the Note 9 talking big battery... or small depending on frame size it says. So that means... nobody knows lol.
I'm pretty skeptical on the latest rumor just from the idea that... if the phone dimensions will be pretty close to last years, then I don't see how they can shoehorn a bigger battery in the phone.
Another thing... look at the latest pic in the below article that all the rumors have been based off. they are trying to show with cameras horizontally mounted gives extra space for a huge battery. If you look at the layout of the S8, S9, Note 8... you have all the main chips (CPU, Memory, audio, power management chip going down the side of the phone next to battery. And then with the Notes, you have to use up the other side of the phone for the pen silo. In the photo, where is the space for the pen silo?
Unless they do a major redesign of the motherboard layout to free up that much space, I don't see the battery as big as shown.
https://www.tomsguide.com/us/galaxy-note-9-battery,news-27390.html
Where are ppl seeing the note 9 having a smaller battery? Everything I'm reading is saying at least 3850mah which is bigger Thang the S9+.