Super short Flight time, battery still very full

[BradFazner]

OrangeRx T-SIX 2.4GHz DSM2 Compatible 6CH Transmitter w/10 Model Memory and 3-Pos Switch (Mode 1) 1
10x4.5 SF Props 2pc CW 2 pc CCW Rotation (Orange)
Turnigy 2200mAh 3S 25C Lipo Pack
OrangeRx R615X DSM2/DSMX Compatible 6Ch 2.4GHz Receiver w/CPPM
DJI Naza-M V2 Multi-Rotor Flight Controller GPS Combo
Hobby King Quadcopter Power Distribution Board
XT60 to 4 X 3.5mm bullet Multistar ESC Power Breakout Cable
Afro ESC 30Amp OPTO Multi-rotor Motor Speed Controller (SimonK Firmware)
SunnySky X2212 KV980 Brushless Motor
and this is a 4 motor copter

so this guy is rad, super stable and powerful. problem is that i run it for maybe 4 mins and it starts to lose lift and everything like the battery is almost dead. thing is that the battery is still at about 11.5 volts. any idea why?
thanks a ton in advance! first post on here!

 

[holtneil]

Hi mate thats an easy one, go into naza assist to the fail safe set up the battery voltage is wrong the naza thinks your battery is low and lower the power to a landing ( one of the fail safes) change battery setting so second stage licks in at 3.0v a cell that is the max lowest a lipo can go with out damage to the lipo
the other failsafe should be set to return home and land

 

[BradFazner]

son of a...that sounds like a good idea, but i had installed the software on my brothers computer out of town and i can't get it to install on mine. have googled and tried endlessly, no matter what i can't get the drivers to work...

 

[BradFazner]

oh. turns out it was a crappy usb cable...i'll try it out in a few hours when the kids are in bed

 

[holtneil]

Hi Brad ok let me know how you get on , Go in to Naza assist then advanced then voltage ,make sure it read the battery right if it has look at the 2 failsafes its the second one that normally lands the quad