I have tested the flight time of the M150F micro quadcopter today, just briefly in the garden.
Airborne for 09:30 minutes:
The PID tuning is not finished yet, so the picture quality is still bad.
I have charged back 847mAh into the 950mAH Nanotech battery,
so there is 100mAh more until the full exhaustion which would probably destroy the battery.
Upon this I judge, that 9+ minutes is achievable by fpv flying.
To be honest, I have set 8 minutes countdown time on my Futaba radio, this is a safe flight in any weather conditions.
Note that flying fpv in a similar altitude usually draws less current as the static hover.
Also note that this time is achieved while Mobius draws around 500mA and the vTX around 100mA.