Aerospace Instrument-Making Annotation << Back METHODS OF INCREASING THE ACTIVE LIFE OF THE SPACECRAFT BY IMPROVING THE COMBINED STORAGE OF ELECTRICAL ENERGY D.L. Kargu, G.B. Steganov, V.A. Timofeev, A.A. Skoptsov The characteristics of the operating conditions of power supply systems (PSS) in typical orbits of spacecraft (SC), which affect the technical characteristics of the main components of the onboard power supply system, namely solar and battery batteries, are given. Various ways of extending the service life of batteries of power supply systems of spacecraft (PSS SC) are considered. The structure and composition of the elements of a combined electric energy storage device are proposed. Keywords: combined storage device, electric energy, power supply system, spacecraft. DOI: 10.25791/aviakosmos.10.2021.1246 Pp. 38-46.