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SF6 abb power consulting servicing machinery electronic weighing device

US20040201365A1 - Energy storage device for loads having ... electrical energy storage device for storing electrical energy and supplying the electrical energy to a driving motor at different power levels is disclosed. The electrical storage device has an energy battery connected to a power battery. The energy battery has a higher energy density than the power battery. However, the power battery can provide electrical power to the electrical motor at ...

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