I bought mine from Vaposhop(Europe) and it is ok.
Battery life is ok. Bought a ff1-charger a few month ago, never tried the docking-station.
At least 5 Bowls with 2 hits per bowl, drawing slow until the green led turns off.
How long the green light is on depends on how tight you pack. I stirr...
Whht is a "CC"? And, more important, did you get a repaired or new ff2? Or is it still pending?
You are lucky to have a second person(or ff2) to compare.
Sitting in Europe waiting and watching the videos over and over again I noticed a <Disconnect>-Button in the app.
Maybe pushing this shuts down the bluetooth-unit inside ff2 to stop sending signals and this saves power?
Do not know if you have done this.