u/Apprehensive_Try8293

I got this G14 2022 for more than 3 years now and it starts to crash upon startup every time when i boot it on battery. The crashes happen during the rog logo and then a black screen appears saying ntoskrnl.exe.
Funny thing is, it never crashes when i boot it plugged in.
The laptop is currently using the 317 bios which seems to be a bit more stable when compared to the newer 319 bios.

FYI, The laptop was also sent to a repair shop and no error occured when stress testing it. I have also replaced the battery and ssd but this error persists.

What should I do?
Any ways to fix this?
I am thinking of repasting it with some thermal putty and ptm7950 but would that do anything?

Lenovo Legion 5i – Gaming Laptop - Intel® Core™ i7-14700HX - 15" 2.5K WQXGA PureSight OLED Display–165Hz Refresh Rate–NVIDIA® GeForce RTX™ 5070 – 16 GB Memory – 1 TB Storage – 3 Months of PC GamePass
from amazon lenovo official store

or

GIGABYTE A16 Pro 16" Gaming Laptop - I7, RTX 5070 Ti, 1 TB SSD 32GB DDR5 (New)
from an ebay business seller

they are around the same price £1300

i mainly play competitive FPS and some story games

I heard that the a16 pro has a low power draw which may affect performance and temperature.

And hows the warranties and customer services of Lenovo and Gigabyte? Which ones better?

which one should i go for?