Battery runtime forecasting for an information handling system

An information handling system, comprising:

• a battery;
• a memory storing instructions;
• a processor in communication with the memory to perform operations comprising:
• identifying a power usage of the information handling system (IHS);
• identifying a charge profile of the battery of the IHS, the charge profile including one or more charging levels each associated with a respective time period;
• determining a state of charge of the battery based on a current time;
• identifying power delivery capabilities of a power source providing power to the battery;
• generating a predicted relative state of charge (RSOC) profile of the battery based on i) the power usage of the IHS, ii) an entirety of the charge profile of the battery, iii) the state of charge of the battery, and iv) power delivery capabilities of the power source;
• and
• identifying a runtime estimate of the battery, including:
• i) determining, for each time period, a time to full for the time period based on the predicted RSOC profile of the battery for the time period and the charging level of the time period, and
• ii) calculating a summation of the time to full for each time period based on the current time to generate the runtime estimate of the battery.

A non-transitory computer-readable medium comprising instructions executable by one or more computers which, upon such execution, cause the one or more computers to perform operations comprising:

• identifying a power usage of an information handling system (IHS);
• identifying a charge profile of a battery of the IHS, the charge profile including one or more charging levels each associated with a respective time period;
• determining a current state of charge of the battery based on a current time;
• identifying power delivery capabilities of a power source providing power to the battery;
• generating a predicted relative state of charge (RSOC) profile of the battery based on i) the power usage of the IHS, ii) an entirety of the charge profile of the battery, iii) the state of charge of the battery, and iv) power delivery capabilities of the power source;
• and
• identifying a runtime estimate of the battery, including:
• i) determining, for each time period, a time to full for the time period based on the predicted RSOC profile of the battery for the time period and the charging level of the time period, and
• ii) calculating a summation of the time to full for each time period based on the current time to generate the runtime estimate of the battery.