Comprising a microprocessor, an LCD, a 32.768-kHz crystal, and little else, the basic countdown-timer circuit in Figure 1 operates from a commonly available CR2032 lithium-coin-cell battery. Based on ...

A certain type of cordless optical computer mouse operates on two AA alkaline cells. It has no power on/off switch. When not in use, it automatically reduces power consumption by switching its light ...

The engineers and designers at Shargeek, responsible for creating a selection of very unique and cyberpunk inspired battery packs over the past few years. Have this month launched their third ...