BUT you will DEFO need a P99 to go between the reciever and speed controller for the simple reason if you dont you will damage the ESC......Read all about it on the ACTion site.The P98 needs a constant 5v supply....connect a 5cell batt pack up to the reciever and hasta lavista P98....This is because the 5 cell pack is 6v.
The esc doesnt have a BEC circuit........thast WHY you would need a seperate power pack or alternativly you could allways use an ACTion P92 power dist board
Dave