Just something that came to mind while marathoning My Hero Academia: Since Zoacrystals store a Zoalord's power, can they store some of that power into other crystals like quartz? Like a back up battery so they don't drain their main crystal first and be left with a "oh crap" moment. 

I honestly don't know why this popped into my head while watching a super hero anime, but I'd figured it'd be worth asking the community and see if it's possible. 

I think the zoacrystal is essentially a rechargeable battery. I think they could charge and store energy in other sources  if they needed too. If they can open black holes and create electrical storms, something as simple as storing that energy should be do-able

khan used energy/mass from millions of zoanoids, so there isn't much reason why they couldn't do that with a crystal that was engineered the same as a zoanoid.