My laptop's battery was fully ok last week. I used to get 4-6 hours backup. Even battery percentage up or down was linear. But last week i went to travel so i fully charged my laptop and unplugged everything and kept it at home. Incame back after 8 days and when i try to power it on, it won't turn on. Then i plugged the ac adapter and it turned on. But the battery is 0%. Even after charging for 5-6 hours it's still 0%. Tried both power on and off mode charging and even reinstalled battery driver. Please help.
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