PlayerEmers
Educated
Yeah, i change tdp all the time and even limit cpu clock speed sometimes using decky power tools. It definitely helps but it doesnt do miracles.I find it a bit lacking tbh. I can squeeze 4+ hours playing something really light, but most of the time battery lasts about 2 hours for me (even less because i like to keep battery between 20%-85%). But I guess this kinda "works" for you: you dont want to waste hours and hours consecutively playing on handhelds. Taking a breather is good.Battery life is average.
Have you tried adjusting the tdp? A lot of indie and older games don't require the full power and can run on 3 or 4 watts. Having a 65w power bank also extends the battery life quite a bit.
I also undervolted cpu/gpu on the bios.
edit: worth noting that when I said battery lasting 2 hours, its mostly for games that are actually demanding (graphically or because the engine/game itself is janky with shit code and runs like ass and sucks the power out of the deck)