I rigged up a Monoprice IR extender to run on battery power, so I can take it out near the pool and still have volume control. I wanted to know if the extender pulls power all of the time or only when being used to send a signal to the receiver. I would think it would need some level of trickle power to keep the sensor active. I have it running on 8 AA rechargeable batteries housed in a polycarbonate box. Works well and can be positioned within about 50-60 feet or so before it gets sluggish with RF it's trying to send to the receiver. Any help would be appreciated.