New Battery on Framework 13 7640u

I have a Framework 13 7640u, and I'm overall happy with the processing speed, build quality, etc, but I was very interested in the Framework 13 Pro's battery upgrade. Curious if anyone has upgraded their Framework 13 with the new Bottom Cover and Battery, and how much of a performance improvement that would be. From my understanding, a lot of the battery improvement in the Pro is also specifically from the newer Intel Ultra CPUs, but the battery of my current Framework is a large issue for me currently.