makes a clack sound and turns off

Good morning, In March I bought an 8100Y minibook, everything was fine until a couple of weeks ago.
I put it to charge and it charges 100% but when I turn it on it lasts a few minutes on. It clacks and turns off. At 70% a low battery message appears on the bios screen.
It turns off even with the charger connected.
How can I solve that?

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