Focbox unity does not turn on

ESK8 Electronics
1

Hey guys,

It‘s my second build and i don‘t know what’s wrong (I’m not really a tech guy but learned a lot since I’m building my boards.)

I connected and soldered everything as needed on my board and wanted to connect but my unity does not turn on. Even my second unity i own from my other board does not turn on but did in the other board hours ago.

Setup: Maytech 6374 motor , Adapter to smaller wire (between motorwire and unity),12s5p battery 30q - voltage ok, checked it with multimeter , original power button (checked a second one , same issue )

Do you guys have any idea why the unity does not turn on? Added two pictures (the one with the board without finished soldering ) Lights in the unity light up when turning the wheels.

Thank you so much.

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2

Difficult to see whats going on in there.

Did it work ever? Before putting it all together did you confirm it was functional?

3

With the first one I don’t know but the second one should.

I also thought that maybe the power button is now ok but I had a new one laying around and this one did not work either.

I mean a unity is so simple but don‘t know what to do anymore.

4

Take the orange silicone cover off and take a close picture of the components near where the power input wires are connected to the circuit board.

5

Is that box metal?

6

Soooo , when i connect power to the Battery (charger) then the focbox starts so it‘s probably a broken bms. Whatever why right? Strange is that it charges and that I have Current on the cable.

7

Maybe you guys could help me with that, on the left upper corner is a temperature sensor , is that correct that this one is connected?

12s bestech bms

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image3840×2160 1.57 MB
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8

Who build this battery? You? If so What wiring instructions did you follow?

9

A friend of mine did it. I ordered the bms and so he did as he thought it should be probably.