The power on light is blinking alternatively white and then multiple times red. The battery Icon in the lower right says, battery fully charged. With the power cord detached, the computer is functional and states the percent of battery life. Why is the

The power on light is blinking alternatively white and then multiple times red.  The battery Icon in the lower right says, battery fully charged.  With the power cord detached, the computer is functional and states the percent of battery life.  Why is the power on light blinking?   Thank you for your help