Yes but it's limited to only the Nintendo Switch 2 Pro Controller.

The basic Joy-cons have no change to their battery capacity.

It's because they're basically already using user replaceable batteries, to the point I'm not sure what the SKU revision will actually do. My best guess is they won't be gluing the battery down any more? Otherwise there's not anything I can see they would need to change.

https://www.ifixit.com/Guide/Joy-Con+Battery+Replacement/113...