Abstract: A multi-voltage direct current uninterruptable power supply (DC-UPS) system is described, which is configured to receive electrical energy from any of a plurality of sources external to the system, process such energy into a particular format, store the formatted energy, and convert the stored energy into multiple, adjustable, simultaneous, continuous direct current and desired voltage streams. The DC UPS system is configured to combine particular streams to implement load sharing, and to deliver these current streams to a plurality of external devices by a plurality of interconnections. In various implementations, the system may be configured to monitor and report state of charge (SOC) levels, processor activity, and other operational variables. In embodiments, the system may be configured with a single main board capable of routing the various voltage and current streams with substantial configuration flexibility, and of providing synthesized regulated voltages in a highly efficient manner.