RS3D Missing and no data generated and time gaps

Quick question,
does anyone on the support team know if there is internal power regulation on the RS3D and 4D’s? The easiest solution for us would be to just buy a new AC power supply adapter that feeding a higher voltage of 7.5 or 9 V to compensate for the power loss along the run, instead of the 5.1V that the raspberry pi AC plug came with. So really, I guess the question is what is the maximum voltage that the system can withstand? I suspect that if the internals of the RS3D and 4D are unregulated systems, then they would likely only handle +/- 0.5 volts outside tolerance (as far as I am aware). Any information on this would be extremely helpful.