acer predato helios 300

I have a 2 yr old Acer Predator Helios 300, since last month I started facing a weird issue with the laptop battery. If I pull the power cord while I'm gaming, the laptop trips immediately and then refuses to boot up on battery. After many trials, I realized that this only happens when my...

i have owned my 2018 predator helios 300 for a year and a half now when I first bought it it had heating issues getting up to 90 degrees while gaming so I followed a tutorial and reposted it with Noctua NT-H2. Not much changed so I undervolted it by 140 mlv that worked a little but I also got a...