Acer Predator Helios Neo 16 PHN16-71 doesn't power on unless plugged in, but the battery works fine

I bought predator neo 16 (PHN16-71) 3 months ago. Few days ago I noticed that my laptop no longer turns on unless I plug it in. I thought it was a battery problem, so after I powered it on, I tried running it on battery and it worked perfectly fine. I update my bios also. Now, I don't know if there was an update that caused this or my settings changed somehow, but I tried Googling the problem and it seems there's no answer on the internet at the moment. Can you please help me?

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