Voltage drop

I'm having a real boring issue with the hexacopter starts beeping and warning for low voltage as soon as I take off.
It doesn't warn when I take off without the camera gimbal attached.

My spec is:
Pixhawk with 3DR power module
Tarot 680 Pro
6x Sunnysky V3508 700kV
13 inch props
DSLR Gimbal with SToRM32
2x Multistar 5200mAh 4S 10C

I'm having the two batteries wired in parallel and that should add up to 20C discharge rate=able to deliver 5.2*20=104Amps.

Surely, my hexacopter can't draw this much and cause the batteries to drop so much in voltage?? Please help!

The voltage

j1uhdNs.png?1

The current
2jTT4fX.png?1

2015-10-18 17-58-52.log

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Replies

  • I really need help from someone who might know what is up!

    I have now tested with 2x 5000mah 25C batteries(adds up to 50C discharge rate) and still the copter warns me for low voltage during flight! So irretating!

    v1eh9xr.png?1

  • Having a very similar issue on a 450 quad running a pixhawk and arducopter 3.2/3.3. Batteries are drained in seconds with no other peripherals attached to power supply. 

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