Just played the first tutorial and watched the cutscenes and landed back in to the mission command HUD and here’s my battery assessment on an Xs Max as I took time and battery notes because I too take this seriously..... Played for 26 minutes and the battery went from 85% to 73% so that’s a difference of 12%. So that’s 0.46% battery per minute or nearly 1% just over every 2 minutes. Honestly......it’s not brilliant, but that’s pretty standard for these heavy hitters. It’s pretty inline with Civ 6 and from memory basically inline with XCOM EW. You gotta remember this is a couple of years on in terms of game specs, it’s a beefy game. Heat wise. Yeh ok my device got warm in those 26 minutes. Not fry an egg boiling, but warm. Would an hour of gameplay be worse still or had I reached the temp top? Dunno. I’ll be trying again soon. I honestly was expecting worse. It’s not great, it’s gonna drain your battery more than tiny wings, but it’s fair considering, I guess.