Android battery problems on Samsung Galaxy S6

[aarti]

So, some days ago the battery started to behave strange. It reloads pretty fast, in usage up to 2% per minute, and in non-usage (everything except WiFi is disabled) it loses like 30% in 6 hours.
The internal battery manager can't find a problem with the battery.
Already tried using other chargers, no differences.
Is my battery defect or is there another problem?

 

[Hayato213]

Probably time for a new phone, rechargeable battery's life degrade overtime depends on how long you had the phone.

 

[aarti]

Probably time for a new phone, rechargeable battery's life degrade overtime depends on how long you had the phone.

Have this phone since its release, so 2015. Really don't want to buy a new phone, because I was pretty satisfied with the S6.
Also, look at the new phones. The low price ones start at €500.
I think I will replace the battery by experts, maybe I can use the phone for the next 3 years.

 

[DKAngel]

just replace it yourself, pretty sure it isnt hard to do, ive had my s5 since release and ive just swapped my battery ( though it is removable) only because it would shutdown at 12%

 

[aarti]

just replace it yourself, pretty sure it isnt hard to do, ive had my s5 since release and ive just swapped my battery ( though it is removable) only because it would shutdown at 12%

The battery of the S6 is not user-replaceable :/

 

[gamesquest1]

the battery isn't too hard to swap over, but just be careful peeling off the back glass, its pretty easy to crack if your not careful, here is a simple video so you know what to do

 

[Hayato213]

The battery of the S6 is not user-replaceable :/

It is replaceable but you have to use a heatgun to slowly heatup the back cover and use some prying tools