[fragmede]

That doesn't seem totally reasonable. The battery life of an iphone is pretty great if you're not actually using it, but if you're using the device hard, it gets hot to the touch, along with the battery getting drained. playing resource intensive video games, maxing out the *PU won't stop and let the device sleep at all, and has a noticable hit on battery life. Where inference takes a lot of compute to perform, it's hard to imagine inference being totally free, battery-wise. It probably won't be as hard on the device as playing specific video games non-stop, but I get into phone conversations with ChatGPT as it is, so I can imagine that being a concern if you're already low on battery.