regenerative braking energy / power applications / low energy density / bank module / measurement equipment / conserve energy / ultracapacitor technology / high-tech microscopic manufacturing processes / times more energy / excellent solution / constant current load device / protection devices / lower energy density then batteries / bank / system applications / energy storage devices / electrical energy / energy loss / consumer devices / precision high-tech equipment / car audio performance / high-energy version / cellular electronics / power electronics / vs energy characteristics / back-up time applications / chemical / memory systems / less energy storage capability / active switching device / energy / energy storage device / /