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Airbus to drop lithium-ion batteries in a350
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Originally posted by EconomyClass View PostAirliners don't primarily depend on batteries for electric power do they? Aren't these just like the computer UPS, there to insure power continuity in emergencies?
However, to start the plane with no external power source, you need the battery to start the APU.
Also, in flight, if you have a dual engine failure, you need the battery (or the RAT) to start the APU before you can attempt an engine restart (unless you are in the right zone of the envelope to attempt a windmilling restart).
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