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The 787 uses more electricity than any other jet. And it makes more use of lithium-ion batteries than any other jet, because it needs to be able to provide power for things like flight controls and a backup generator when its engines are shut down. Each 787 has two of the batteries. Boeing Co. never did figure out the root cause of the battery incidents. Instead, it redesigned the battery and its charger. The idea was to eliminate all of the possible causes, 787 chief engineer Mike Sinnett said in an online chat on Thursday where he and a Boeing test pilot took questions about the plane. The changes include more heat insulation between each cell and charging the battery to a lower maximum voltage.
[Associated
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