Yes Rick for sure. The battery was only an input connection, no way I want something that heavy mounted on the equipment. By the way already ordered Anderson connectors for all this. Your power rail was my inspiration
Also having a chat to Peter today he mentioned some devices (like his camera) crapping themselves if connected before the power and that makes switchable power risky to remote observatories. Right now I'm looking into making the USB hub itself switchable from this device too. Not quite sure how that will work yet. I'm hoping cutting the 5V from the computer and the power controller at the same time will hard reset all devices, but I may need to cut the datalines to the computer too to force the reset. This will need some experimentation starting with some cheap donor USB devices