US 2013/0254564 A1 · BATTERY LIFE EXTENDING POWER SUPPLY SYSTEM

Abstract

A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.

Claims20

Dependent claims

A battery management system, comprising:

a battery;
and
a management system that is coupled to the battery and that is operable to couple to an external power source, wherein the management system is further operable, when coupled to the external power source, to:
determine that a battery power level of the battery is greater than a first power level and, in response, disable power from being supplied from the external power source to charge the battery at a first charge level, and cause power to be drawn by a load from the battery until the battery power level is below the first power level;
and
determine that the battery power level of the battery is less than the first power level and, in response, use the external power source to charge the battery at a second charge level that is less than the first charge level until the battery power level is above a second power level.

3 more elements

An information handling system, comprising:

a processor;
a memory coupled to the processor;
a battery coupled to the processor;
and
a management system that is coupled to the processor, the memory, and the battery, wherein the management system is operable to couple to an external power source and:
determine that a battery power level of the battery is greater than a first power level and, in response, disable power from being supplied from the external power source to charge the battery at a first charge level, and cause power to be drawn by a load from the battery until the battery power level is below the first power level;
and
determine that the battery power level of the battery is less than the first power level and, in response, use the external power source to charge the battery at a second charge level that is less than the first charge level until the battery power level is above a second power level.

5 more elements

Dependencies are inferred from the claim text.

Battery life extending power supply system

Life of this patent

Battery life extending power supply system

Life of this patent

Abstract

Claims20