Electric car maker Tesla wants a cheaper, faster way to produce the lithium ion batteries that power its cars, and the company has settled on a gargantuan solution: the so-called "gigafactory" that, if all goes as planned, will crank out more lithium ion batteries than the entire world produced in 2013.

The location for the factory, set to go online in 2017 and produce enough batteries for half a million cars by 2020, has been narrowed down to four states. Which one is the front runner? Our pals at Jalopnik took a look at the pros and cons of each state vying for the world's largest battery factory, below.

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