BMW 750hL PEM Fuel Cell APU
The compact fuel cell battery simply occupies the space otherwise taken up by the conventional lead acid batteries of the 7 Series sedan.
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Power
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5kW
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Voltage
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42V
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Efficiency
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45% (system)
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Volume
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20L (stack) 48L (system)
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Weight
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22kg (stack) 45kg (system)
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