members.


i have purchased 2 of these esc's from local hobby store. they are simonk flashed and seems to be working awesome.. .
emax is a reputed company and their electronics never failed .. atleast in my case.

i mounted them on a reptilte quad for filming and a 650 qua with 3 axis gimbal for filming.
everything seems fine the initial days.. but i figured my copter missing one of the mottors rpm suddenly and them comes back again..

i changed the escs with other set and then it was working fine

i opened the esc box to check the issue

and i found out.. the soldering of the connecters are very loose.. VERY BAD SOLDERING..
the connector pin was actually moving in side the soldered contact.

i resoldered the points A B C and put some cyano for the connector to be in place.. and things are awesome now.. this is an important fix .
i was lucky enough to escape a crash.

Pics

They have individual ESCs inside!!!, that is what i wanted to know. and do they sell these boards individually, in case if one fails.

Ashok.P

Yah.. Individual escs inside.. And verygood cooling head .
They are hardly warm after 40 min flight on my quad with 4s 10k mah setup.

I dont think they would sell seperately.

Looks good,
my tricopter failed in mid air and came down swirling and broke a prop and all the three arms.
later i found that the quadkopters ESC failed in midflight and after crash test smoked my motor too.
those ESCs are the only products in quadkopters.com which is faulty and other products like motors and radio, props are amazing stuffs, hope if satya sir is reading this thread choose to dump those ESCs and get to some other better brand in near future. i myself got three faulty ones including this and he replaced one already. got two burnt motors and a all-broken-Tricopter bcoz of these ESCs.
Saw these quad ESCs on RCD but i was into a a tricopter by then so ignored it. also never got any reviews locally so was not interested by then, will move into this sooner. thanks for the review sujit.

Ashok.P

I had a esc failure too from quadkopters.com. they are not upto the mark. Dont know id we are the odd man out.. Not many reported cases.. Satya should be able to tell thw ratio.. 

I am using emax.. From rcd .. I am liking emax .their simonk series is affordable too..

Odd man? not with 3 ESCs of same 30A type.!!!
Switching to EMAX sooner.( dont know how emax stand out of crowd with all its ruggedness and easy to use options.

Ashok.P

I had over 100 flights.. All perfect.. But make sure u check the soldering..

thanks, i hope the same works with 20A, and which 3axis gimbal you are using? you have retracts?

Dys. 3 axis

Yes..20a mod also the same.

hello, i had purchased this esc but 3rd module was malfuctioning in my case, i got the refund . emax says they sell them separately but its nowhere to be found on the internet , but another company called AGM sells these same escs and they also have single modules for replacement/repair for 13 $ ..  hope this was useful .. 
people buying this esc, i would say its better to stick to the traditional way of esc installation, and not go with 4 in one unit .. 

I have never found any issue in 4 in 1s.. Hobbywing quattro 20a is also nice.. They are good fr quad use.