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Mamba Monster Thermal Cutoff?
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agarabaghi
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Mamba Monster Thermal Cutoff? - 02.12.2011, 10:33 PM

At what temp does the Mamba Monster Thermal cutoff engage?

And what happens when it does. I think i might have experienced it today, after running about 3/4 of a pack at the track the car would kind loose throttle power (steering still worked) for a couple second, then it would start running again. If i took it to my workbench and let it cool down, it ran great for another 3/4ths of a pack, and then it would do the samething... (i checked the voltage of the packs 3.7v each cell, so it wasnt cut off
   
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josh9mille
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02.12.2011, 10:45 PM

It might be the LVC. Voltage drops under load and it might be tripping the LVC but will still read higher at rest.


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agarabaghi
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02.12.2011, 11:19 PM

hmm ive never experienced that with any of these packs in my other cars...
   
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slimthelineman
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02.12.2011, 11:21 PM

I agree at rest if the cells are only at 3.7 a piece they would definately drop to a cutoff level depending on your settings and motor/setup. When it thermals or hits lvc it will flash a specific combination of led's on the esc. Check the sticky in this forum it has a list of what everything means. Have never thermaled mine but have hit lvc and it does exactly what your describing. I think the thermal protection comes on at around 170 but that's just what came out of my head could be wrong.

Last edited by slimthelineman; 02.12.2011 at 11:23 PM.
   
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agarabaghi
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02.12.2011, 11:24 PM

i didnt time the packs, but im sure ive run much longer that what i had done before it cut off or turned off.

What is making me think its not the lvc is that after letting the car sit for a bit, i ran the same pack for another 7-8mins probably (estimate) and then the issue re occurred making me thing it was not the LVC
   
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Overdriven
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02.13.2011, 12:34 AM

If it was the LVC you wouldn't be able to get another 7-8 minutes of run time before it tripped again, not unless you were cruising around at 1/4 throttle. Most likely it would trip again the first time you hit anything above 1/2 throttle.


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agarabaghi
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02.13.2011, 12:43 AM

which is why i dont think it was the LVC cut off, because after waiting i was able to run the track driving like i normally do (which is far from 1/4 throttle ha)
   
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fastbaja5b
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02.13.2011, 08:55 PM

My experience with the Castle ESC's is that the LVC doesn't really kick in when the pack is under load and momentarily drops. I have had Lipos drop to 2.9/3.0V a cell under load (eagletree data) when the LVC hasn't kicked in, and I always set it at 3.5V


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E-Revonut
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02.13.2011, 11:04 PM

If you are thermalling the Mamba Monster.....There is definitely something wrong with your setup!!! The fan should be coming on and keeping it cool for starters. I have been running a MMM on my truggy for two years and the fan only comes on at startup, never been hot enough to kick on during a run let alone thermal the esc


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