Hello guys. I need one 4 in 1 25amps or above esc for my quadrotor. I have a q brain 4 in 1. But one of the esc isnt working properly. It jams up my motor. Let me know if anyone can help me with the issue or is willing to sell an esc.

the hobby shop has the q brain 4 in 1  for 3,560rs...if the price is ok for you buy this one,or you can look up esc's at rcmumbai.com or you can get 4 x new already programmed DYS 30amp esc for much less from me,if you want then pm me and will confirm the price till sunday(as have to ask the seller for the price) it will be around 3000rs or less.
regards
rohan

what is the max. amp consumed by a motor???if it is x you should get an ESC of rating 20-30 % more than your motors rating i.e (x+x/5)amps or (x+x/3)amps and dont use an ESC that has a very high rating it can harm your motor...best of luck for your project im building a quad too and know its very exciting, do share the experience of the first flight and upload the video if you can,and welcome to RCindia...
regards
rohan  

you can get 4x avionics white simonk 20amp esc