White walkers can't have EVs. Not because they are lifeless zombies who probably can't drive, but because the extreme cold of the north would severely impact the lithium batteries. Also, the region is quite large, so EVs would likely run out of juice before they could cover a good portion of its 1,100-mile length. Scientists in China may have solved both problems with a new lithium battery electrolyte that withstands cold temperatures and could double EV range.