Acer Predator PHN16-72 switches between battery and charging continuously while I am using it

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Zepp
Zepp Member Posts: 3 New User
edited 4:51PM in Predator Laptops

I am using Acer Predator PHN16-72 laptop and I always plug it in when using (I have limited the charging capacity to 80% with Predator Sense) but sometimes while I am using it, there is a "beep" sound and Predator Sense notifies that it is switching to battery usage state even though the laptop is still plugged in and I have to unplug the charger and plug it back in to return it to charging state (sometimes the "beep beep beep" sound is continuous and the battery usage and charging state also switch back and forth continuously so I have to unplug it and plug it back in (sometimes I have to unplug it and plug it back in 2-3 times) to return to normal).

Let me ask where this situation can come from and how to fix it? Is it really serious and do I need to bring it in for warranty?

Please forgive me if my expression is not good because I use Google Translate. Here is my battery report.

[Edited the thread to add issue detail]