I have been thinking about switching to a lipo receiver pack for my glow planes. I looked up the specs on Spektrum's website and it says that it can take voltages up to 9.5 volts. Does this mean that I can simply plug in a 2S lipo as a direct replacement for the receiver battery, or do I need a voltage regulator? Also, where are voltage regulators purchased, I have looked around a little but can't find much. Thank you.