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-   -   I ran my MMM on 10S (https://www.rc-monster.com/forum/showthread.php?t=21126)

Unsullied_Spy 05.28.2009 12:36 AM

Wow, I figured the MMM had 8s in it but 10s is nuts. I can't imagine it lasting too long, but props for trying!

NoControl 05.28.2009 03:16 PM

I dought you could check the TVS even though its a diode which in general is easy to test, finding out which one of the surface mount parts is the might be a little bit hard, besides your still able to run it so leave it alone.

BrianG 05.28.2009 04:15 PM

Not sure exactly where it is on a V2 or V3, but it's a fairly large device about the size of one of the FETs. On a V1 (at least on mine) it was located right where the power wires were soldered to the board (underside).

I agree though, that high of a voltage probably blew it very quick. It is designed to supress voltage spikes for a very short duration (such as when braking), but applying a constant voltage likely popped it within a couple of milli-seconds. All this means is that any protection from braking spikes is not there anymore.

mistercrash 05.28.2009 07:39 PM

I better not brake then. :smile: here's a pic of the underside of the MMM board.

http://i177.photobucket.com/albums/w...vo/th_mmm3.jpg

What's_nitro? 05.28.2009 08:22 PM

Quote:

Originally Posted by mistercrash (Post 290877)
I better not brake then. :smile:

I like the way you think... :lol:

Pdelcast 06.01.2009 10:16 AM

Quote:

Originally Posted by Unsullied_Spy (Post 290634)
Wow, I figured the MMM had 8s in it but 10s is nuts. I can't imagine it lasting too long, but props for trying!

Nope, it doesn't have 8S in it... The TVS will fry, and then under heavy braking the rest of the electronics will go....

mistercrash 06.01.2009 11:43 AM

Quote:

Originally Posted by Unsullied_Spy (Post 290634)
Wow, I figured the MMM had 8s in it but 10s is nuts. I can't imagine it lasting too long, but props for trying!

Well it's not something I wanted to try, it was a mistake on my part by not using my parallel harness and just plugging the lipos in series. :whistle:


Quote:

Originally Posted by Pdelcast
Nope, it doesn't have 8S in it... The TVS will fry, and then under heavy braking the reset of the electronics will go....

Yup I know and that's why I bought another MMM combo. Once I get it I will probably send in the MMM combo I have now for repairs. In the mean time, the thing is still working. :yipi:


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