Designed to eliminate the need for separate batteries for each portable product, the Multi-Power Pac battery combines a regulated control circuit with a lead battery for portables such as camcorders, digital cameras, pocket TVs, CD players, handheld games and more. Multi-Power Pac control circuits enable adjustable, regulated output of voltage with an input of dc voltage between 3V and 24V and up to 4A. Voltage is controlled by utilizing one of the 11 slide-in chips that are inserted into the voltage control system. Additional circuitry ensures proper and safe charging of the energy cell and an incorporated LED light array for accurate fuel gauging. Each Pac includes a set of eight different dc adapters for connection to varying portable products, a charger and a convenient carrying case with belt and shoulder strap.