Combining energy harvesting system, quick charge solution, and backup power supply in miniaturized package, UMAC Series provides maximum charge/discharge rate of 10 C (30 mA) and charge recovery rate of at least 90% after 1,000 cycles. Large-capacity, cylinder-type energy devices can be used as secondary batteries in same way as capacitors, making them suitable as power supplies for wearable devices or in sensor nodes for wireless sensor networks.