If you have high-voltage servos you want to check out our PowerExpander line that does NOT regulate the servo voltage.
The Smart-Fly PowerSystem family is our all-in-one power distribution line for use with lithium-ion or lithium-polymer battery packs when your servos are not high-voltage servos. They have all the features of our popular PowerExpander family plus they incorporate servo regulator(s) for lithium battery packs. In general these are only need when your battery pack voltage is greater than your servos' maximum operating voltage. In a lot of instances a PowerExpander will meet your requirements for less.
PowerSafe receivers are not recommended for use with any of our
systems. These types of receivers were never designed to be used with
any power management units. We are compatible with all other JR and