TrueRC 2X3S1P 5000mAh + NEU 1515 1.5D + MMM = FIRE!

[JaySki]

Originally Posted by MetalMan

Just out of curiosity, how long were your battery leads (from the battery to the ESC)? Schulze ESCs had a huge problem with this, and their manual actually said to add capacitors if the leads were long enough (because of voltage ripple).

I think Artc1k is onto something, that the MMM needs higher capacitance. Anybody know what capacitors and how many the MMM comes with?

Maybe 6 inches?

I certainly can't disagree with what Arct1c is saying of jhautz is doing.. Adding a capacitor to smooth out the voltage would work.. but why are we having to add components to a piece of electronics that claims to be able to handle what we are using it for??????

This whole conversation isn't to argue what I did wrong or may not have done wrong. To me.. it is looking at what I was doing that caused the catastrophic failure of the MMM. Was I within specifications? I think so. if I was borderline... then I could see a failure if I pushed too hard and for too long. Running the gearing I ran, on smooth pavement, for less than 5 minutes.. never getting to full speed, never stomping on the throttle or break... should NOT have caused it to flame. Considering when it blew.. It as rolling at a walking pace... otherwise.. I'd likely have a melted car and not just a burnt ESC.

[lincpimp]

I do agree that the MMM has been quite a disapointment... I just hope that they figure out what is up with the recent failures. Your sounds like a fet failure, those do happen, and not that frequently.

[jhautz]

Originally Posted by JaySki

This whole conversation isn't to argue what I did wrong or may not have done wrong. To me.. it is looking at what I was doing that caused the catastrophic failure of the MMM. Was I within specifications? I think so. if I was borderline... then I could see a failure if I pushed too hard and for too long. Running the gearing I ran, on smooth pavement, for less than 5 minutes.. never getting to full speed, never stomping on the throttle or break... should NOT have caused it to flame. Considering when it blew.. It as rolling at a walking pace... otherwise.. I'd likely have a melted car and not just a burnt ESC.

Dont let any of this bother you. There arent many that seem to be able to make these MMMs run for very long. I've been through 3 already myself.