ok guys the new AR7300BX looks like it just replaced the 7200, my question is do you have to have a separate battery to power it or just the same as the 7200 and just plug in the esc in the throttle port i was wanting a AR7200BX don't want a used one and every where i go they have the ar7300bx I 'm kinda lost with the 7300 and i read you need high voltage servos with it...I have the Trex 550E Pro DFC and the servos are not HV that i know of there DS615 and DS655