Macbook showing dead, but has been charged. Turn on only with charger.
Hi,
I have Macbook 12. When I open it and want to turn it on, it shows it's dead even though the battery is not 0% (sometimes 80%, sometimes 50%). I plug it into a charger and it starts and shows the right percentage of a battery. Then I can use the Macbook without charger. But I always have to wake it up with help of charger.
The battery status is: "Service battery".
Do I need to replace the whole battery? Thank you
MacBook, macOS 10.15