@kornel As a grumpy old person*, this is making me wonder how much battery they crammed into an S9.
* I was pissed off when Apple made me pay for OS X 10.1, just to get the optimizations they should've shipped on my godawful expensive TiBook up front.
@xek According to ifixit, S9 has 250mAh battery, which is about 1Wh.
For giggles, 1Wh relative to energy usage of an electric car gives about 6 meters of range.