Vaibhavpahadi

Please help me if anyone has a solution. The laptop charged to 85 percent and then it showed a plugged in not charging sign.. I tried to upgrade my bios and then it started charging, after it was turned off for about an hour, but as the battery reached 95 percent it again had the same problem and this time it kept on switching between unplugged and plugged in. It was also making beeps while switching.