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HP Recommended
ProBook 450 G5
Microsoft Windows 11

So I have been using this laptop for 3 years now. But I have been using it more frequently to study online. Sometimes when I unplug the charger, the battery level runs out really fast, about 3%/ 2 minutes. It is now getting worse, when the battery level reaches about 50~60%, the laptop suddenly shuts down and needs to be plug to be turned on again. The prob here is when it shuts, the battery level is just about 50~60%, but when I turned it back on, it's 0%. I am about to go to offline classes again and I can't bring a charger to class, so anyone can help me troubleshoot this please??

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