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snellemin
2 KiloWatt RACER
 
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06.01.2007, 04:05 PM

I had a similar problem with 2 MM ESC's. It was smooth, braked hard and I was bragging left and right. Then slowly the brakes faded and I got less power. Cogging would get worse and then one day ....BOOOM!!...ESC smoked. I'm still waiting for my replacement ESC from CC. Brake was always set 50% and drag brake was at 10%. My last ESC blew all 3 caps. And I'm running a fan on my ESC too, making me wonder about the qaulity. My buddy has his ESC since last year and still going with the exact same setup that I have.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW

Last edited by snellemin; 06.01.2007 at 04:12 PM.
   
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nativepaul
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06.01.2007, 06:21 PM

Hmm I didn't think of the drag brake, but that could have a very big effect, I spend a lot more time rolling round corners off the throttle than I do with the brakes on.

If it is still faded after a rest then it is not temps like I originaly thought.

My MM has always had occasional but pretty severe cogging at low speed, I hardwired my motor, but my batterys are old and crap so I think they just can't supply the juice needed.

I hope you get to the bottom of it in the end, keep us posted.
   
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