After studying the batteries, I finally came to a conclusion. Kadeon was using them to power the Zodiacs while they groomed the Underworld, or that was my assumption. I still had no proof that there were even Zodiacs here. For all I knew, the Aether Demons could just be something that Kadeon had created long ago and kept in hiding. That could also explain why they weren't using Positive Energy.
Finally, after getting frustrated, I opened a portal to Amanda, The Creator. I probably should have asked her to start, but I thought I knew what these things were better than I did. It was clear that they were meant to be more than batteries and most likely weapons, but my sexy golem girl should be able to figure them out.
"Aren't you supposed to be in the underworld?" Amanda asked as my small portal appeared in front of her face as she was working at her bench in her room. She had the same sphere in two pieces in front of her.