It's a NIMH pack, around 20 cycles, never over-discharged or overcharged
Maybe 3 hours total flight time, it doesn't get above normal temp for a motor
pitch is fine and no binding, in fact I rebuilt the head recently.
It's not the pro version, and it's a year old but I barely used it because I gave up on it for like 8 months, but then learned to fly.

Nothing lead to this, was doing perfect hovers and it just started doing this. Basically it acts exactly as if the battery was discharged (even though it's charged).