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If Wolfram Alpha is right, then 10^11 km is 2 million times around the earth:

https://www.wolframalpha.com/input/?i=10%5E11km+%2F+earth+ci...

Shows the potential of batteries. Charge your one kilo batttery to drive around the planet two million times.

It would be a misnomer in common parlance to describe nuclear fuel as a battery (mass > energy conversion). The broader language to describe this is ‘energy storage.’ E.g. oil is stored solar energy over millions of years, batters are stored electrochemical energy, flywheels are stored mechanical energy, etc.

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