You need a regulator of you are running a Lipo with normal servos (not the high voltage type). You either need a regulator or buy a life battery. Some racers on rctech race normal servos with a Lipo and don't have an issue. You also need to know the input voltage for your receiver too. Sorry don't have a regulator, switched to HV servos, and run life cells. If your in a pinch I could trade you my life battery for your Lipo.
Shawn