u/Jasbasai

Asus TUF F15 shuts down after 1 min on AC power, instantly dies when unplugged. Battery % jumping in BIOS. Is it totally dead?

Hey everyone, I really need some help with my Asus TUF F15 (i5-12500H). I’ve only had it for about a year and I really need it for my IT foundation coding assignments.

​Last night, I was playing Roblox and accidentally let the battery drain completely to 0% until it shut off. Since then, it’s been completely bricked.

​The Symptoms:

​Won't turn on unplugged: It is completely unresponsive unless the wall charger is plugged in. If I unplug the jack while it's on, it instantly dies.

​Shuts down in Windows: When plugged in, it boots up to the lock screen, but shuts down forcefully after exactly 1 minute.

​Stays on in BIOS: If I spam F2 and sit in the BIOS, it stays on perfectly fine without shutting down. CPU temps are super cool (37°C), so it's not overheating.

​Weird Battery Readings: While sitting in the BIOS, I watched the battery percentage jump randomly from 13%, instantly drop to 0%, and then jump back to 11%.

​What I have tried so far:

​I did the hard reset by unplugging everything and holding the power button down for 40 seconds. It didn't change anything.

​Right now, I'm just leaving it plugged in (with the laptop turned off) for a few hours to see if a deep charge will wake it up.

​Has anyone experienced this specific issue? Did I permanently kill a battery cell by letting it deep discharge to 0% under load, or is there some sort of internal safety lockout/software bug I can fix?

​If the battery is totally fried, can I just unplug the battery from the motherboard and run it purely on AC power so I can at least finish my coursework?

​Thanks in advance for any advice!

u/Jasbasai — 9 days ago