Smok AL85 battery problems

Hello, I've been having a lot of problems with my AL85. I've been using it for about half a year on and off and only recently started using it daily.
The problem is that sometimes ( about 1 in 10 ) when you hold the button it does work but the battery level goes down to 0, sits there for a bit and then comes back. Sometimes that doesn't happen and it all together just doesn't do anything. I am confused, I've tried reinstalling the battery multiple times, cleaned the contacts, etc.
Is It…

Smok AL85 battery problems

Original source: https://www.e-cigarette-forum.com/threads/smok-al85-battery-problems.968751/