An advanced power system employing lithium polymer pouch cells which operates in all environments from atmospheric pressures, upward and through to the harsh and demanding realm of a space vacuum, including any aerospace related environments of launch, flight or operation for satellites, missiles, rockets, aircraft, or on any vehicle where size and weight may or may not be of critical importance but where power output is desired to be maximized, this invention is an new manifestation, arrangement, combination, architecture and application of lithium polymer battery technology in the form of an advanced lithium polymer system (ALPS) for aerospace or similar environments that require an architecture resulting in the never-before contemplated, attempted or demonstrated integrated combination of attributes of safety, modularity, scalability, expandability, deployability, employability, practicality, intelligence control and radiation hardening, while being comprised of any number of stacked flat lithium polymer battery cells physically arranged and integrated within a constraining packaging enclosure that maximizes safety and power density while mitigating the debilitating effects of shock, vibration, thermal cycle, vacuum, radiation and electromagnetic interference while simultaneously communicating electronically with a battery management system that provides instant autonomous cell protection, balancing and electronically isolated real-time monitoring of all individual cell parameters of voltage, current, temperature, state of charge and internal resistance to prevent battery catastrophic thermal runaway events caused by cell electrolyte leakage, overcharge and internal defects while simultaneously being capable of interfacing with a hardwired graphical human interface and remote telemetry system that monitors and displays all cell parameters with visibility down to the individual cell level allowing for cell parameter data to be continually monitored and archived and used to characterize and screen out cells in a particular cell manufacturing lot, and also to identify in real-time via prognostic software if a particular cell is entering a non-acceptable condition prior to displaying hazardous behavior which could result in a hazardous condition.