tl;dr – natural petroleum has an energy density (watt hours per kg) 30x greater than even the best batteries we have.  Even accounting for waste energy in internal combustion engines, natural petroleum still wins by 6.67x.

Electric only is simply not ready for primetime.

A tech company called Envia Systems has announced that it is able to produce rechargeable lithium-ion batteries (Li-ion, i.e., the standard kind of rechargeable batteries that go in everything from ph…

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