Hardware Wii U GamePad keep flashing orange while charging

[TotorRuns]

Hi everyone.
I have since a few days while charging a flashing orange light. The battery charge normally but the battery light is flashing orange.

I changed the battery last year but now comes the mentioned error.

Is there any fix or have I to change the battery again?

 

[Tebra]

I have exactly the same issue. Did you find any solution?
The battery seams to charge normally but flashing orange light keeps going on when connected to the charger. It stops blinking few seconds after removing it form the chager.