I only played Undertale for a bit yesterday and it was showing 7-8 hours projected battery life. But I had set the TDP quite low (around 5 I think).

No idea how it will be with Celeste. I used to think that such pixelated games are always gentle on the battery untill I played Signalis. Fan was loud and battery life wasn’t as good as I was expecting.

Undertale and Celeste. I will play both cuz I have long distance flights soon and I need battery friendly games.