My BLX100 wires started smoking

[Chadwood]

Hello Everyone,
I have a question. Please look at the picture where I have the blue circle can anyone tell me what this part is called and what does it do?
I connected my battery while the power switch was on (lesson learned) and smoke came out of this. I opened it up and there was a little circuit board with two capacitors on it and a component that was burned. I was wondering if there is a way to just replace the board.
Thank you in advance!

 

[Diem Turner]

That's what is called a cap pack. They're designed to smooth out variances in voltage. I don't know if they sell replacements for that particular ESC but any cap pack made for however many cells the ESC supports would work. You could probably even just remove it and not notice any difference.

 

[slick2500]

That's what is called a cap pack. They're designed to smooth out variances in voltage. I don't know if they sell replacements for that particular ESC but any cap pack made for however many cells the ESC supports would work. You could probably even just remove it and not notice any difference.

Pretty much this, if replacing the caps just get a pack that has the same or higher specs than the current ones.

I have 2 BLX100 escs, one is the V1 without the cap pack and the other is a V2 with the cap pack, I have not noticed any difference between them. The V1 was purchased December 27th 2018 and the V2 was purchased Februaryish 2020.

This is a picture that shows the differences between the 2 escs. Not mine just stole it off Google.

 

[Revomikey]

Easily repaired, cut them off and resolder the wire without them, you can put new ones in if you like but I've ran fine without caps for ages on an old blx100 of mine. They are useful but not essential.

If the batteries cables are long enough just replace the caps with the battery connector.

 

[Chadwood]

Thank you all for your information! Does anyone know where to get a replacement? The caps didn't fail it was a tiny component on the little board that the caps were soldered to.
Thanks again! Great forum!

 

[Mikeeeeeeeeeeeeeeeal]

If you so desire:

Integy RC Model C23757 High Performance ESC Input Capacitor Set for 2S to 3S Applications https://a.co/d/cTDAdr1