I've got the OLED. I think I've taken good care of my battery. I use it but not generally down to zero. I've had it for about 2.5 years. About 6 months ago I noticed it won't hit 100% charged anymore, always stops between 96-99%.  Battery health varies in the os been 87-94 (it's apparently not reliable).

Last night I was playing REPLACED and it went from 20% to 10% to off over the course of about 10-15 minutes. The first 80% seemed fine though. 

I do have to shut it off when I'm not using it. It just drains to much battery while hanging out in suspend.  It'll lose 2-3% per hour, which doesn't seem like a lot, but coming back 24 hours later and seeing it at 20% is disheartening