OK, so I ordered just about everything I need and IM just waiting on the conversion kit, but I seen some pics of other conversions and I noticed some o them have BECs, Will I need one of these, Im running the Novak HV, 3S lipo, 2 fans, and hs985mg servo.. I have a Fasst radio system with the 3 channel reciever and there is a bec plug, but IM not sure exactly what this does... If I do need one which one should I get? Thanks or your help...