NOVELTY - The supply (300) has an input (102) for receiving a phase wire of an alternating current (AC) power supply, and another input for receiving the neutral wire of the AC power supply. A set of output direct current (DC) power terminals is provided for a set of loads (L1-LN). Each of the DC power terminals has a positive output terminal for providing a positive DC voltage and another positive output terminal for providing a ground terminal. Each of the output DC power terminals provides a corresponding output DC voltage. A battery charger (120) charges a rechargeable battery array (130).    USE - Uninterruptible power supply for home/office networking and communication system, personal computer, telecommunication system, entertainment system business computer and telecommunication equipment for data center, for making the internet service in a house or office and keeping the telephone phone service and internet service running when the power supply is not available, and for recharging portable electronic device e.g. mobile phone, personal digital assistant and portable music player and for use in a motorized vehicle such as automobiles, motorcycle, boat and aircraft.    ADVANTAGE - The output direct current power terminals provide corresponding output direct current voltage, thus providing protection from a momentary power interruption. The uninterruptible power supply protects the rechargeable battery array from damage caused by excessive current demand from the set of the loads, and protects the set of the loads from damage caused by electrical shocks.    DETAILED DESCRIPTION - The rechargeable battery comprises sealed lead acid (SLA) battery, nickel cadmium (NiCd) battery, nickel metal hydride (NiMH) battery, lithium ion (Li-Ion) battery and lithium ion polymer battery. An INDEPENDENT CLAIM is also included for a method for providing an uninterruptible power supply for home/office networking and communication system.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of an uninterruptible power supply for home/office networking and communication system.    Loads (L1-LN)    Inputs (102, 104)    Battery charger (120)    Rechargeable battery array (130)    Uninterruptible power supply (300)