ZABBIE
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  • Darrell Burkey
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ZABBIE's Discussions

Sudden Potential drop when taking off

Started this discussion. Last reply by Ronald Pandolfi Nov 14. 7 Replies

Hi,this is just a general question I would like to ask which is related to an issue that I have been dealing with lately.I built a hexacopter with a weight of 8.5 Kg, I am using a 14000 mAh lipo…Continue

Sending Pixhawk 2.1 TELEM1 data via RJ45 cable

Started Jan 31 0 Replies

Greetings everyone,I am currently working on a tethered drone and wanted to make a couple of changes to the data transmission and I need some help regarding it.Earlier for telemetry data…Continue

camera view polygon??

Started Oct 10, 2018 0 Replies

I came across this term and I wanted to clear this out.Is it, Camera's view position aligning perpendicularly to the direction of the selected polygon object's normals or is or something else?Continue

BLDC motor reccomendation.

Started this discussion. Last reply by Abenr Ring Apr 21. 10 Replies

Greetings everyone,I am want to develop a tether hexacopter out of a tarot X6 and I am having problem in choosing the motors. The actual problem is that the companies don't have any record that…Continue

 

ZABBIE's Page

Latest Activity

Ronald Pandolfi replied to ZABBIE's discussion Sudden Potential drop when taking off
"A voltage drop when drawing current results from internal (battery) resistance (V = iR). The internal resistance of a battery is based on chemistry, design, and temperature. The "C" rating of a battery may be helpful to gauge your purchase…"
Nov 14
Andreas Gazis replied to ZABBIE's discussion Sudden Potential drop when taking off
"What do you mean by dropping drastically?Please look at the LiPo discharge curves here. Notice the difference in measured voltages due to increased voltage drop caused by higher current being drawn. Dropping drastically immediately the moment you…"
Nov 12
ZABBIE replied to ZABBIE's discussion Sudden Potential drop when taking off
"Hello, Actually I have done 2 flights of my Hexa with 20000mah lipo battery a few weeks before. and I was getting 20 mins of flight time(with take-off weight 8500gms). after a week again I tried to test the same. but to my surprise, the voltage was…"
Nov 12
Andreas Gazis replied to ZABBIE's discussion Sudden Potential drop when taking off
"I am not sure if you are aware that a voltage drop is actually expected as you draw current, as the other posters point out. This is due to the battery's internal resistance and, as pointed out, your battery's nominal discharge rate is…"
Nov 12
Darrell Burkey replied to ZABBIE's discussion Sudden Potential drop when taking off
"25C is a bit low for a draw of 46amps regardless of what the maths would indicate. The battery would be getting quite hot and the internal resistance would increase greatly. On a copter that size I'd be using something more in the 60C range.…"
Nov 12
ZABBIE replied to ZABBIE's discussion Sudden Potential drop when taking off
"I was testing the propulsion system from Xoar titan 6008 (400kv) motors with 19x6 CF propeller, ESC(60A , model name P60 from Xoar) propellers, the frame used for testing was tarot X6.I used the power distribution board of the tarot X6 to power up…"
Nov 11
OG replied to ZABBIE's discussion Sudden Potential drop when taking off
"you have not given much relevant information? your amp draw is 46 amps seems too much but we need to know more relevant information  like prop size and motors how meany battery's your using to determine what is your issue…"
Nov 11
ZABBIE posted a discussion

Sudden Potential drop when taking off

Hi,this is just a general question I would like to ask which is related to an issue that I have been dealing with lately.I built a hexacopter with a weight of 8.5 Kg, I am using a 14000 mAh lipo battery with it. The batteries are brand new (Tattu 6s 25C lipo).Before the flight, I charged my battery and took it for testing. The initial voltage was 25.1 Volts but when taking off the voltage dropped to 22.5 Volts and the average current consumed by the system was 46 amps. According to my…See More
Nov 11
ZABBIE replied to Juan's discussion SmartAP 3.0 vs Pixhawk, any experience?
"did you try smartap?"
Jul 29
Abenr Ring replied to ZABBIE's discussion BLDC motor reccomendation.
"Safety is the most important, buy a good brand more reliable"
Apr 21

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