Is my battery dying?

My laptop shuts down when the battery charge is above 40%. Is the battery dying? Here are some details about the battery from the app "batterycare":

-current battery capacity: 100%

-battery remaining time: 3h58minutes

-battery status: full charge

-discharge cycle progress: 7/30

-Designed capacity: 48840 mWh

-Total capacity: 41925 mWh

-current capacity: 41925 mWh

-charge/discharge rate: +2.3 W

-Tension (voltage): 10491 mV

-wear level: 14.16%

-total discharge cycles: 7