It is programmed to actually handle 4s and has a LVC for same... Main issue with 4s is that it uses a linear rather than switching bec - hence lots of heat and everyone on 4s has to use an UBEC.
I think we all except that we are running out of spec though on 4s... however it does manage it pretty well.
It runs very well on 4s, I have run all of mine on 4s without any issues. You do have to disable the internal bec and run either a ubec or receiver pack. With heaviery vehicles like the 8th cale monster trucks and truggies the weight does work the MM a bit. You can add a few caps to the input power leads to help it out. Otherwise it is a great esc for the money!
I think that cost has alot to do with it. Plus the MGMs seem to be largely untested. I know of a few on this forum that run them, aparently with success. So it is probably just the price!
I also think it's the price. Why pay 100+ more when you can have an esc that is easy to program, and can handle what you are doing? Plus, the Customer Service is impeccable.
"if you've got something to say, say it peacefully"
I had tried several controllers before the MM came along, and none of them could do what a MM does.. and they were all rated for similar or higher amps and cost more. I never had a $400 esc though.
Jammin CRT MM/Neu 1515 1700kv
Losi 8IGHT MM/Neu 1512 1900kv
Kyosho 777
T4 MM 5700
B4 LRP
XX4 MM 7700
old losi xxcr, MM4600 4s lipo 70mph+
I'm using the MM esc with a 4S Lipo. I just grabbed a 1600 Mah 2S Lipo and use it for my esc and servo. Cost me about $20 and sends just a little more V to the servo. Makes a crappy servo run great. Not the best for the long term though.
Just changed gearing to 24/36 for testing. Might be way too much. The 20/36 was hard to control.
Running cul-de-sac pavement suburb's.
Mine:
2007 Grizzly 700 EPS EFI
Sons:
BL E-Maxx
4S MA 4000 Lipo/MM ESC
Feigao 9XL 22/54 gearing
Gmaxx single speed