Quad losing power during flight

[Greg]

Problem: during flight, quad will lose power for a second or less, until yesterday! It has happened a couple of times, but regained power and control. I have flown my quad out at least 100 yds from base without problems before. So yesterday, the quad took off, lost power for a second, recovered, then a minute later, lost all power and dropped out of the sky about 35' to ground. It was about 50' from base. Its not a loss, will require repairs but he can be built better stronger more powerful than...wait, wrong show.

Build: HK Rotorbits quad frame
HK2.1.5 controller (soon to be replaced with APM2.6)
Turnigy DST1200's
Afro 20a ESC's flashed SimonK
Turnigy 9X controller and receiver
Turnigy 4S battery / 3s (occurs when flying with both types of batteries)
Boscam TR1 FPV (all in 1 camera, transmitter and recorder 5Ghz)

Note: I use my 9x controller and receiver on mini quad running Naze 32 without loss of power.

Question: Anyone else experience this same problem?

I'm at a loss as to how to begin trouble shooting the problem. Could be interference from Boscam, problem with the HK flight controller or a bad receiver. I don't have the tools to test.

Your thoughts are most welcome.

 

[holtneil]

Hi mate sounds like a brown out ,What was the receiver light doing flashing or still , as for interference from the boscam , as long as its not right next to the receiver its normally, ok What firmware are you running the KK with the hobby king firmware has these sorts of problems ,so we reflash with steveis1.8s1pro its much nicer to fly on more stable