Health monitoring of a ups battery

At least one non-transitory computer-readable medium storing thereon sequences of computer-executable instructions for controlling an uninterruptible power supply (UPS) including a first input configured to be coupled to a primary power source, a power factor correction (PFC) converter coupled to the first input, a second input configured to be coupled to a secondary power source, a DC/DC converter coupled to the second input, and an output configured to be coupled to a load, the sequences of computer-executable instructions including instructions that instruct at least one processor to:

• control the DC/DC converter to provide secondary power derived from the secondary power source to the output;
• control, while an amount of power available from the primary power source is sufficient to satisfy the load, the PFC converter to provide primary power derived from the primary power source to the output in parallel with the DC/DC converter providing the secondary power to the output;
• receive at least one of a charge or discharge parameter associated with the secondary power source;
• and
• determine a state of health (SOH) of the secondary power source based on the at least one of the charge or discharge parameter.

A method of controlling an uninterruptible power supply (UPS) including a first input configured to be coupled to a primary power source, a power factor correction (PFC) converter coupled to the first input, a second input configured to be coupled to a secondary power source, a DC/DC converter coupled to the second input, and an output configured to be coupled to a load, the method comprising:

• controlling the DC/DC converter to provide secondary power derived from the secondary power source to the output;
• controlling, while an amount of power available from the primary power source is sufficient to satisfy the load, the PFC converter to output primary power derived from the primary power source to the output in parallel with the DC/DC converter providing the secondary power to the output;
• receiving at least one of a charge or discharge parameter associated with the secondary power source;
• and
• determining a state of health (SOH) of the secondary power source based on the at least one of the charge or discharge parameter.