Hi all
I have two sparks, each with 3 batteries.
I have two batteries that present with problems.

Why is it that on one flight, in the same area that I normally fly, with battery "-" I have no problems

https://www.phantomhelp.com/LogViewer/U4SNQX09PGMDPNKZAC9R/

Then directly afterward with battery "x" I have a multitude of problems:
Cell Deviations
Speed Error
Yaw error
compass error
Weak GPS signal


https://www.phantomhelp.com/LogViewer/LX4DIRCZG9X3GGWQ26LH/


When flying with my other spark I encounter similar problems with battery "x"

My other batteries do not produce problems (except the one marked "6" which produces a disconnect at various times)

This leads me to believe that the batteries and NOT the Spark are at fault.

Hi Droffarc,

Interesting case. If a battery "gives" errors in 2 SPARKs, sound like kind of proof.

Let`s wait for a reaction of DJI.

cheers
JJB

I concur: There's something wrong with that battery that shows as "Cell Deviation." I think the rest of the errors are related to that. Also, let's see what the DJI admin says.

One time I experienced the Nyut-Nyut problem during takeoff. I replaced the battery and then everything was fine.

For a while I suspect the battery is responsible for these problems! The .0900 firmware update which did nothing but optimize the battery ...

I suspect DJI is aware of this problem ...

Is it possible that different parts of the Spark circuit derives power from different cells in the battery? Quite curious to know how "cell deviation" can give rise to so many other errors.

nilanjan118 Posted at 7-25 22:23
Is it possible that different parts of the Spark circuit derives power from different cells in the battery? Quite curious to know how "cell deviation" can give rise to so many other errors.

simple. The regulator section inside the battery circuit board may be prematurely  failing and thus Ic supply voltage is not constant

JJB* Posted at 7-21 12:02
Hi Droffarc,

Interesting case. If a battery "gives" errors in 2 SPARKs, sound like kind of proof.

"Let`s wait for a reaction of DJI."

Silence is golden.....