Thanks ScruffR! I followed your suggestion of removing the other wires and just using the battery wires. There was no power to the Photon still. So I checked that the batteries were good by removing them. All good there. After I replaced the batteries, I tried again and voila! now I got power to the Photon. I suspect that the one of the batteries wasn’t making good contact in the battery pack. The pack was real tight and the spring on the “-” end did not have enough flex to push the “+” end of the battery to connect with the battery pack’s connector. I ended up moving the batteries to connect well by hand. Your reply helped a great deal in that it confirmed to me that this should be working and it always helps to start with a simpler wiring.