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Astronauts take spacewalk to swap space station's batteries WBNS-10TV Columbus, Ohio



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Two American astronauts are taking a spacewalk to replace aging batteries on the International Space Station

NASA's Anne McClain and Nick Hague are scheduled to work in space Friday several hours to out three old nickel-hydrogen batteries with more powerful lithium-ion batteries.

The station's robotic arm did much of the heavy work already, but the astronauts have to lug 300-pound adapters the size of a large coffee table and reconnect attachments.

Even when the chore is complete, there will still be more of the 20-year- old station's original batteries to replace.

Next week's spacewalk will include the first all-female crew, including McClain.

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