RE: pros &cons of using 4. 8 or 6 volt for rx
The only con I can see other than weight is higher volts, equal higher amp draw. If you have a 2500 ma 4.8 volt pack side by side with a 6 volt of the same ma rating, the 6 volt will go dead faster. Why? I'm not quite sure, that's just what I have read over and over here of RCU.