Valve Confirms Steam Frame is Still Coming This Year, Now Marked as "coming soon"

https://lemmy.today/post/49002440

Anyone knows if the controllers will be rechargeable?

AA batteries are what it shows on the Steam Frame store page. Text is

Easy battery access​

Each Steam Frame controller runs on a single AA battery, offering ~40 hours of play time.

I know this, but if I use rechargeable AA batteries, will I be able to charge them without removing them from the controllers? Like through usb-c?
I would guess not. Don’t see any USB ports listed in the controllers specs and haven’t spotted anything that looks like an port on the controllers in the little videos they have of the Frame
Isn’t there a dual use charging puck and transmitter with it?