But ATV does now have its four solar wings attached, and soon its cargo will be added and the batteries installed.

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The lithium-ion batteries installed on the Boeing 787 are inherently unsafe, says Elon Musk, founder of SpaceX and owner of electric car maker Tesla.

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Throughout the latter half of this year, our technical teams have worked diligently to ensure that the batteries installed in Nissan LEAFs were operating to specification.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge

He installed 60 16-volt batteries in their own steel cage.

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If regulators are convinced that a fix of the way the batteries are built or installed is sufficient -- and that measures are in place to minimize any risks from an overheated battery -- the 787 could be back in service within weeks.

CNN: How Boeing can bounce back from Dreamliner problems

While out on three spacewalks, Atlantis mission specialists Steve Bowen, Michael Good and Garrett Reisman replaced six solar array batteries on the orbiting platform and installed a backup communications Ku-band antenna and a robot tool tray.

BBC: Atlantis set for 'final' return

In three further spacewalks to be undertaken in the next three days, two spectrographs will be installed and the remaining three of Hubble's batteries will be replaced.

BBC: Hubble gyros fixed after struggle

Depleted batteries would be removed, and fresh ones installed, at a network of battery swapping stations operated by Better Place.

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The three batteries that were replaced were the original equipment installed on Hubble 19 years ago, intended to have just a five-year lifespan.

BBC: Hubble gyros fixed after struggle