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Are you sure that the "smaller" batteries are lighter? It seems like they might be the same factor more dense also.

• redthrowaway 16y ago
  That's a good question. I simply don't know enough about Li batteries to answer it. I would think that nanoscale electroplating, as this effectively does, wouldn't add huge amounts of weight over current methods, in relation to surface area, but I could be grossly mistaken.