Galaxy S7 shuts down before battery runs out

[dislab]

I have noticed that my Samsung Galaxy S7's battery showed about 30%-35% left, then it shut down suddenly. It wouldn't reboot unless I plugged into the charger. When it was plugged into the charger, the screen showed battery has 35% left (before the reboot). It doesn't happen every time the battery reaches 35%, but it has happened twice in the past two weeks. Has anyone else seen this before? Is this a sign of battery problem? I had the phone for about 4 months. Is this a product defect and is it covered by warranty? I can also enroll the equipment protection plan immediately when it is still available. I searched a little bit and found people reported similar problem in S4 a while ago. Thanks for any input!

 

[chanchan05]

I'd actually suggest having it checked for battery issues.

 

[dislab]

I'd actually suggest having it checked for battery issues.

Where can I have it checked? How much is it usually? Thanks.

 

[chanchan05]

If you got it from a carrier, call them.