I looks more than little swollen. Not surprised it only flies a couple minutes. Tattu makes good batteries, but this Taotuo seems like a common cheap knockoff junk, just like the Jhonnie Worker whiskey or Daidas sportswear…
I’m going to say try a new battery after weighing your craft. That one looks toast.
Ok VDLJu & Eosbandi. I truly appreciate your feedback. This is a result of me being previously led to believe that 3.2 was the safe cutoff voltage for lipo batteries. This is my 1st time hearing that its 3.5. I will certainly keep that in mind & I will also consider increasing my cutoff V to 3.5.
…
Underpowered… Your RC Out is between 1600 and Max
You will have better result with 15" or larger propellers (check motor tech data).
Marc
Thanks mlebret. If its not asking for too much, could you please show me what a normal RCOUT graph should look like. That was my very 1st time ever retrieving flight data log. I certainly do not know how to read, analyze nor understand what it is I’m looking at. Is there a website or some sort of resource or literature that would teach me that? When I attempted to graph the RCOUT this is what I got…
My 15x7 props should be in the end of this week. Hopefully they will provide much better results.
Thanks again.
Hello,
This one from my OctoQuadX:
Since, I moved the Battery backward and average is around 1520.
To look at your log, uncheck TimeUS and check cases C1 to C4:
Best case scenario, RCout should be around 1500 (50% power needed for flight). Between 1350 to 1650 is acceptable, between overpowered to underpowered.
More info: http://ardupilot.org/copter/docs/common-logs.html#logs
Marc
Definitely under powered/overweight (motor 3 is at max) and that battery sags almost 3V immediately. So, get a new battery and try the largest props that will fit. But knowing the all-up-weight will help here.
Hello Marc,
Uncheck TimeUs & check C1 - C4. I will do that this evening. That link is the same that Dave shared with me. To understand what is shown, I guess I just need to read and study that info more thoroughly & in greater detail. Thanks again.
I will post the weight ASAP
woah! hasn’t anyone else noticed how bloated that battery looks! DEFINITELY already out gassing…looks like a fire waiting to happen!
ptegler
Ptegler is correct in noticing your battery, it looks bloated.
the main reason your flight times are short is that you are severely under sized on your propellers.
I would look at 17 -18 inch props for those motors.
The 15" propellers on order are still too small
Larger diameter propellers will most definitely increase the flight time.
Get a new battery too…