Galaxy Note 4 turns off at about 15% remaining battery capacity I've been using my Note 4 for more than 2 years now and I'm absolutely happy with it, except for that one issue: the battery indicator on top does not match the real remaining capacity of the battery. The battery is still ok in terms of its "fitness", it usually allows for a whole day of (power) use. But it is annoying to see that the phone turns off at a shown power level of 13%, sometimes 16%. When I then plug in the charging cable, the charging screen shows the last level like 13%, but I think it really is 0%, because if I turn on the phone shortly after plugging the charger in, it turns off again before it completely boots up.

Is there a way to calibrate the battery level in such a way that the indicator gives correct resp. useful values again?
Is there a way to calibrate the battery level in such a way that the indicator gives correct resp. useful values again?


No . Battery calibration is a myth and you can see this question for more. While the context of question is different, it answers why it is a myth
Bought a new battery, do I need to calibrate it?


Li Ion batteries don't suddenly die ( unlike Ni Cd batteries ); their performance degrades both in terms of charge holding capacity and the performance or life per charge. Two years of usage is not really an indicator of battery life - it depends on a host of other things like how heavily it is used, how it has been charged etc. My gut feeling is that it has lived it's life and it's time more to replace the battery with a new one
HTC and some Nexus devices have a way of fixing wonky battery readings using battery reset logic, but Samsung devices don't have this feature, so to fix it battery replacement is the first step. If the problem persists ( unlikely ) you may need to get it get it checked up