There's a lot of haters here. Yeah, a kid learned about how batteries work, and how to make one using cheap ingredients. That's pretty cool. And now, thanks t

There's a lot of haters here. Yeah, a kid learned about how batteries work, and how to make one using cheap ingredients. That's pretty cool. And now, thanks to 3M, has $25k to his name. He can learn a hell of a lot on that. It all depends how he uses it. One battwery tech I really appreciate is NiFe batteries. The electrolyte is KOH, which one can readily distill from wood ash. The batteries can be severely abused (over/under charged), and will run for decades. All you need is one more water and KOH. The big problem is their energy density is 1/2 that of a lead-acid battery per equal volume.