Need advice on 5 cell speed control

I'am to convert a Revo into brushless, and i've a MM speed comtrol, but i want to run my revo on 5 cells li-po, with a Feigao 9XL motor.
I'am not sure to take the chance to put 5 cells on my MM controler, so could you tell me wich speed control to choose.
I've look at the Quark 125 but don't know if it's a good choice. Some one ever tell me that this controler have bad habit to overheat.
And i'am not certain if i want speed over $400.00CAD on a MGM.
Need help please.

Thank you!

David

[BrianG]

If it's a newer MM, you might have issues on 5s. The original MM is slightly different and people have had better luck with 5s on that ESC.

OHHHHHHH!!!!!!!! How can i know if it's a new or old model???????? I've bought it use.......

[BrianG]

Well, if you can read the part # on one of the FET devices, that would be the easiest way. If the part # is 22N03S, then it should work on 5s. If it's 4108N, then it might not. You could always simply try it on 5s and see...

Should i disasemble it to see this number??

[Finnster]

I've ran 5S on two MM with good luck. One was one that I got right after they came out, the other one was from March after a warr replacement (wifey killed the orig ;) ).

They had diff cases as well. I can't desc the diffs, but if you post a pic I can prolly tell. Don't know if this is a def telltale of the FETs tho. Best case is to just try it and be easy on it at first. I wouldn't use motor brake w/ 5S tho.

[BrianG]

IMO, if you are running so close to the ESC's limit that you have to discable electric brakes, I wouldn't run that voltage. But I'm funny that way.

[zeropointbug]

Originally Posted by BrianG

IMO, if you are running so close to the ESC's limit that you have to discable electric brakes, I wouldn't run that voltage. But I'm funny that way.

I am 'funny' that way too... hehe

Anyone else a bit comical on this subject? lol