In this work the main principles used in the development of portable power source based on fuel cells with indirect oxidation of sodium borohydride are described, the general arrangement of this power source is shown, and its operating mechanism is described. The proposed power source has a number of advantages over existing portable power sources. The application of alkaline fuel cells enables to discard expensive solid-polymer electrolyte, catalysts and constructional materials that will lead to significant decrease of the power source cost.
