Interesting. But as far as it has been explained in both the Manga and Anime. The Control Medal is nothing more than a CPU, while it would boost the power of a Bio Boosted Zoalord to beyond their natural limits. As for the Zoacrystals acting like a battery, I don't think that would be the case. As the armor just boost the power of Zoacrystals, but once the power is used up. The armor would need time to replenish the energy. A classic example is when the Guyver fires the megasmasher, once fired the armor needs time to replenish the energy spent to fire the megasmasher before it fires again.