I have an ROG Strix G15 G513QM-ES94 from 2021...
I've disabled the dGPU, I've set the CPU to max out at 40% of normal clock speed, I use the silent profile in Armoury Crate, I've disabled keyboard backlighting, and I've set the screen to low brightness on 60Hz, and yet I drain 1% per minute of batt...