So After having issues with quadkopter simonk 30 A esc's getting burnt(i was using 4s battery.maybe that might be a problem?)
i thought of using DYS 30A esc which are rated upto 16.8v .i couldn't find any source from which i can infer the reliability of these esc's . that's why i am asking community members if they can tell me if these are any good.
http://www.ebay.in/itm/301801635916?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649Also i couldn't find these or any god 4s rated esc's in any online hobby shop(except BlHeli ones on rchyper.com).