I think there may be a battery problem, you can go to the repair shop, they can better find your computer problem or hardware problem.If it’s a battery problem, you can search directly on AliExpress.

You can try searching for the model you need on AliExpress.

You should go to the repair shop, they can better find out if your computer is a screen problem or a hardware problem.

You can buy Chuwi Lapbook Air 14 CWI529, my computer is this, I think it is better.