My computer screen flickers, but stops when it's plugged in?

I own an ASUS laptop (X555LAB) running Windows 10, 64 bit. I got it in January 2016. About a month or so ago, the screen began flickering. It tends to do it more when the battery is low. As long as the PC is plugged in, it does not flicker. When I unplug it, it will last a while without flickering but it will then begin to do it again. It also seems to do it quicker when a page/video is loading. It's impossible to do anything when the screen is doing this. I'm grateful that it doesn't when it's plugged in, but I'd like to fix the problem if possible, of course. Does anybody know what could be going on?

I didn't find the right solution from the Internet.

References:
https://www.cnet.com/forums/discussions/...its-plugged-in/

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