That’s what I was thinking (i.e. rechargeable battery not AA), but I wasn’t 100% sure. Either way, I’m in the market for a new controller and Steam seems to be working on a great option that ticks all the right boxes for me as long as the price is reasonable enough. It kind of has an Xbox form factor but the more symmetrical d-pad / analog stick placement of a PS controller, so best of both worlds in my opinion.