You need to use either a UBEC or receiver pack and disable the controller's BEC, though.
Yes metal man i will be using a UBEC with my 14 3800 cells. I was just wondering how the stock setup is. I thought i might try it first before reprograming it .
I'm trying tp program my mamba max with no success. First im using 14 cells my ubec is connected at the circut board with a inline switch at the reciver, & the on board bec disconected. When i turn my esc while holding the trigger on my radio it beeps 4 times all the lights blink & i have no power at my steering servo. So how can i tell if my ubec is working