[Axel]

Awesome story! GO ZZ's!

On the battery:
Ya, you can get Lithium Ion versions of the same. All Lithium ION batteries are rechargeable. The only problem is that they have to be charged at exactly 4.2V. If it's .1V over they will explode, and every .1V less means like 200 charges off of it's life. And if you've ever measured the juice coming off of your charger, you know it's rough to get a steady stream. Mine varies betweek 2.6 and 2.9V when charging. That's far too great of a variance for Li-ION batts. So the answer is yes, but it's a little hard to implement a proper charge for it. I hope to be able to work on a solution for this in the near future.