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by RulerOf
993 days ago
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I visited the NASA campus in Cleveland, OH many years back and got to talking to one of the engineers who worked on this tech for the ISS. The batteries they use up there run $10k a piece, but he stressed how rock solid the chemistry and design is. Nickel hydrogen has incredible endurance, but the part that really struck home with me: they measure the state of charge with a pressure gauge. |
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