I have a few questions about my new A9 that I wanted to bounce off you guys just to make sure I got this correct.

I dont fly 3D or competition just nice 70 inch warbirds in a scale like fasion. My radio came with 4 digital servos (HS-5485HB)which are nice but I really dont need the extra speed or torque so I bought a bunch of HS-485HB servos for most of my flying. I guess they use less power then digital ones as well.

1. Do I need to get a 6 volt battery for my receiver/servos to be safe or will these HS-485HB'sbe okay on4.8 volts? I am talking brownout preventionhere.

2. I was thinkingofusing this great SPC port (power just for the receiver) to avoid brownout and if I do this is it okay to just plug in my extra 4.8 volt battery directly into this port? This way I have a 4.8v for the servos and a seperate 4.8v for receiver? This seems to me (limited knowledge) the safest way to go. What do you think? If I use the port there is no reason to go up to 6 volt?

3. If I use the port, is the telemetry on the transmitter giving me servo battery volts or SPC battery volts?

I started to order all these 6 volt batteries then it hit me that I MAY not need them for the flying I do. I do like the idea of the RX being a seperate power suplly than the servos so I like the idea of the SPC. All thoughts welcome and thanks!