MMM V3 Dead Short on Lipo!

[Dagger Thrasher]

Wow...that's seriously bizarre. Sounds like a manufacturing defect...maybe a stray blob of solder? Patrick's insistent that the heatsink couldn't cause a short like this, as it would just ablate almost instantly...though CastleMike said he was also going to work with manufacturing to prevent any more touching plugs.
Castle won't have a problem with you opening up the case to take a look, as long as you're careful about it.

[jhautz]

Originally Posted by Dagger Thrasher

Castle won't have a problem with you opening up the case to take a look, as long as you're careful about it.

I'm gonna wait for them to tell me that at this point.

When i'll recieve mine, i'll take a multimeter and test the conductivity between the plug and heatsink

[pasan]

Originally Posted by david lamontagn

When i'll recieve mine, i'll take a multimeter and test the conductivity between the plug and heatsink

Which is what he should've done after the very first spark.

Originally Posted by pasan

Which is what he should've done after the very first spark.

exact

[jhautz]

Originally Posted by pasan

Which is what he should've done after the very first spark.

Hind sight being 20/20, I agree. Easy to loose you head in the heat of the moment when the panic and frustration set in. LOL

I did throw a multi meter on it after the 2nd spark, and before the repeated sparking with the 6 cell NiMH pack, but got a really wierd reading. I couldnt get it to give me a consistent measurement. It started off with a very low resistance reading at almost infinity and then over a few seconds kept going up and up to a very high number. It was strange. I also measured the resistance between the plugs on the working V2 I pulled out of the truggy and got some "dancing" numbers. Not sure why that would be, but that little test basically didnt tell me anything. so I went back to the "brute force" testing . lol

[Dagger Thrasher]

Originally Posted by jhautz

I'm gonna wait for them to tell me that at this point.

Fair enough.

Originally Posted by jhautz

I'm gonna wait for them to tell me that at this point.

They said in the other thread that if you open it carefully, they will warranty it. They have had a problem with Traxxas forum members jamming screw drivers into the ESC to open it damaging the brain board.

Originally Posted by Edumakated

They have had a problem with Traxxas forum members jamming screw drivers into the ESC to open it damaging the brain board.

what? are you trying to say that the members on the cough "idiot forum" cough would acually do that?? no way

Originally Posted by big greg

what? are you trying to say that the members on the cough "idiot forum" cough would acually do that?? no way

Yeah... I find it hard to believe too.

[RBMike]

Just bend the heat sink fins away from the bullits, put some shrink tube on them & run it. At some point Castle will listen to us about this problem (& the fan wire issue).

My v2 did the very same thing!

I had it all set up and drove it for about 10mins in our caldisac, at 10pm at night...I then came in and updated to the new 120 version film ware....the next day I was about to leave for the track and I thought I had better try it be for I leave. I pluged in the 5s flight power( the same pack I ran the night before... I turned on the power switch and melted the wires off at the conector to the battery and conector at the ECS, melted the shrink wrap along the side of the battery pack where the one wire runs the length of the pack..

I then checked the + - post on the ECS and there not touching.

I got one more pack and touch the conector and VERY large sparks... I didn't even bother messing with it, as I had one other to send ...I packaged them up that night and OFF they bolth went to castle.

Yes this 5s has gone down hill fast.. I have only 4 cycles on it since this happend and it's very soft now.

Originally Posted by RBMike

Just bend the heat sink fins away from the bullits, put some shrink tube on them & run it. At some point Castle will listen to us about this problem (& the fan wire issue).

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and then they void your warranty and your stuck with a dead v3