Essentially yes. Your gun should run fine on a 7.4, but there's the possibility that it isn't enough juice to cycle then gun, either buy a stiff spring or a motor. That's pretty rare though. Get a MOSFET before running 11.1 or you run the risk of frying your gun. That's it, in a nutshell.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē