Phone goes down to 3% battery after using it for 1 minute.

[Android Central Question]

Hello,
Since this week I have a big problem on my Samsung galaxy A5 (2016).
After I charge my phone to 100% and I disconnect it from the charger, I can use it for around 1 minute. Then it restarts automatically and the battery goes down to 3%.
Also, sometimes after the restart, I write my pin code to unlock. But is says wrong pin. But it is the right pin, and I always have been able to unlock with this pin. I could unlock my screen from Find My Mobile site. And since it happend like 3 times I removed the pin.

I have used this Samsung galaxy A5 for around 2 years now.
Is this a battery problem or will resetting the phone will maybe work?

If someone knows the answer or a suggestion, pleas reply fast.

Thank you in advance!

 

[SmithRiverSuz]

I had a similar problem a couple years ago. The solution for me at that time was turn the phone off, leave it for a minute and turn it back on.

 

[MrYakisoba]

Hmm, seems a very easy solution for this problem. But I will try it. Thx.

 

[B. Diddy]

Welcome to Android Central! If the battery problem persists, the battery is likely failing.