Maxwell Technologies provides WEVTU with this photo of its prototype 42-volt, 20-cell ultracapacitor assembly being developed for vehicle energy storage applications (see WEVTU — Feb 1, '01, p. 6). Business development manager Richard Smith says the individual cells have a nominal voltage rating of 2.1 volts (and 2.5 volts peak), hence 42-volts to 50-volts nominal/peak for the 20-cell pack, which weighs 38 lbs. (17.3 kg) and is 17 ins. × 12 ins. × 7.5 ins. (43 cm × 30 cm × 19 cm) shown ...

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