Tesla Wins 100 Day Bet: World's Largest Battery Is Now Complete

In March, Elon Musk made a now famous bet on Twitter with Mike Cannon-Brookes of Atlassian that he would build the world's largest lithium-ion battery in 100 days.

Already halfway complete with the project when the challenge commenced, Musk kept his word: Tesla has just finished making the world's largest lithium ion battery for South Australia, an undertaking which would have cost the inventor at least $50 million USD.

The 129-megawatt-hour battery -- three times bigger than any in the...

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