Naza m v2 / gps I'm stuck! Plz any suggestions!

[Pgirnus]

Hey, I'm new here and pretty new to multicopters. I have
atg-16-680mm x quad
naza m v2 gps
hobbyking f30 simonk firmware
9-5 carbon props
emax 935 kv
2-3s 2200 lipo in parallel
After I start to fly everything is stable. I fly a few slow maneuvers and then it wants to land wherever the copter happens to be. It does this in both GPS and attitude mode it is not in failsafe or voltage protection mode. When I return to the naza assist all looks good on my view . The voltage. Switches all are centered and normal. It just takes away the power from the esc,s and lands. I take back off and then it just lands again. I'm stumped! After I recharge batts I get another two min then same. Any suggestions?

 

[panino]

Your batteries are bad. The voltage drops and the craft lands. When idle the voltage will rise, so You get normal voltage readings on teh assistant. Watch for led indicator

 

[jersdunz]

mine was doing the same thing. On larger , Good Batteries I shut off the voltage protection and use these during flight.
I imagine with some tuning the voltage protection is fine but I just shut it off..

http://hobbyking.com/hobbyking/stor...ly_Low_Voltage_Alarm_2s_4s_US_Warehouse_.html