Kk2.1 question.

[Sommie1974]

Ok this is weird. I can power my kk2.1 board with a 2s lipo, but it will not power with a 3s? What's the matter folks?

Thanks

[CurryKitten]

Ok this is weird. I can power my kk2.1 board with a 2s lipo, but it will not power with a 3s? What's the matter folks?

Thanks

Don't power it with either, the power for the kk2.1 (or a 2) should come from the 5v BEC from your ESC where it connects to motor 1.  If you do this, the actual number of cells you are using isn't relevant

[Sommie1974]

Ok it powers from my other kk board. Now I'm gonna test each esc individually

Thanks curry

[CurryKitten]

Ok it powers from my other kk board. Now I'm gonna test each esc individually

Thanks curry

Got a picture, as I'm a bit confused if I'm understanding where you are powering ?  So if you are on a quad, you'd attached the servo connectors from the 4 ESCs to motor inputs 1/2/3/4 (obviously paying attention to which motor is numbered what).  The 5v on motor 1 supplies power to the whole board, none of the other motor inputs have the 5v connecting to anything else.  Then this 5v comes back out of the kk through a servo lead to power your RX.  You doing something different - or is it exactly like I've described but a 2s works and 3s doesn't (which would be a bit weird !?)

[Sommie1974]

Thanks for your reply kitten. I wired up all my esc's together rather than use a distribution board. Don't know what's happened but now it seems fine. Just gonna maiden when the rain goes off. Will get a video up soon.

Maybe it's my soldering lol

Thanks

Sommie

[CurryKitten]

Well if an ESC decides to shut down mid flight then we know why ;)

Look forward to your video