Battery connect/disconnect for an uninterruptible power supply

An uninterruptible power supply (UPS) that provides power to a load, the UPS comprising:

• an input to receive power from an input power source;
• an output that provides output power to a load;
• a DC voltage source that provides DC power, the DC voltage source having first and second terminals;
• an electrical circuit operably coupled to the DC voltage source, the electrical circuit capable of receiving the input power and providing the output power;
• a chassis for housing at least the DC voltage source and the electrical circuit;
• and
• means for operably connecting the second terminal of the DC voltage source to the electrical circuit and disconnecting the second terminal of the DC voltage source from the electrical circuit.

In a UPS contained within a chassis, the UPS comprising a DC voltage source having first and second source terminals and an electrical circuit having first and second circuit terminals that receive energy from the DC voltage source, a method of connecting and disconnecting the DC voltage source from the electrical circuit from outside the chassis, comprising:

• coupling the first source terminal to a first receptacle terminal in a receptacle attached to the chassis, the receptacle having a first receptacle terminal and a second receptacle terminal, each receptacle terminal being accessible from outside the chassis;
• coupling the first circuit terminal to the second receptacle terminal;
• coupling the second source terminal to the second circuit terminal;
• and
• isolating the first receptacle terminal from the second receptacle terminal;
• whereby the DC voltage source is disconnected from the electrical circuit when the first receptacle terminal is isolated from the second receptacle terminal.