Originally posted by popsracer
Guys;
The reason for using Receiver packs is simply, Voltage.
You are trying to provide a contant 6.0v to the RX and servos for the best possible operation.
Yes, but it's also very beneficial to runtime in the "battery intensive" disciplines of R/C. In a 12thscale Mod car a receiver pack can be worth around 30 seconds. The less items drawing juice from the big stick equates to more voltage for the MOTOR.