Phone powers off with high user demands

[zetabeta]

... battery and power issues ...

i go speculative comments.

one possibility is a design flaw with pinephone motherboard. and there was an issue already with bi-directional usb port and keyboard case. in this possibility basically internal power is not capable to handle cpu and others. because i already have experience of testing flipping frames bug, i think i run some tests. cpu is not the only power load, modem chip, sdcard, gpu also.

maybe you have faulty motherboard. bad individual unit. i already noticed that in flipping frames frequency bug, all pinephones were not affected.

or just bad contacts for battery, try to clean those battery contacts.