Why does my laptop shut down when started with no charger but full battery?

My laptop always shuts down when the laptop starts without charger plugged in. But the battery is clearly full.
Everyday I bring my laptop to school like that and I open it and it shuts down and cannont be turned on again until I plug in the charger.......Very inconvenient.

[@user-qy2de7ox7z]

did you fix it ?

[@kevinwong_2016]

It has a dead battery 💀

[@nexusio2804]

did you fix it?