US 12,259,455 B2
Calibrating a battery of an information handling system
Pei-Ying Lin, New Taipei (TW); Adolfo S. Montero, Pflugerville, TX (US); Chien-Hao Chiu, Taoyuan (TW); and Shuo-Jung Chou, New Taipei (TW)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Mar. 30, 2023, as Appl. No. 18/193,114.
Prior Publication US 2024/0329178 A1, Oct. 3, 2024
Int. Cl. G01R 35/00 (2006.01); G01R 31/3842 (2019.01); H02J 7/00 (2006.01)
CPC G01R 35/005 (2013.01) [G01R 31/3842 (2019.01); H02J 7/00712 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method of calibrating a battery of an information handling system, comprising:
identifying a historical discharge rate of the battery of the information handling system;
segmenting the historical discharge rate of the battery into a first region and a second region, the first region defined between a first threshold voltage and a second threshold voltage, the second region defined between the second threshold voltage and a third threshold voltage, the first threshold voltage greater than the second threshold voltage, and the second threshold voltage greater than the third threshold voltage;
determining, based on the historical discharge rate of the battery, a first historical charge capacity of the battery for the first region and a second historical charge capacity of the battery for the second region;
discharging, at an updated discharge rate of the battery, the battery from the first threshold voltage to the second threshold voltage;
in response to discharging the battery from the first voltage threshold to the second threshold voltage, calculating, based on the updated discharge rate of the battery, a first updated charge capacity of the battery for the first region;
determining a full charge capacity of the battery based on i) the first updated charge capacity of the battery for the first region and ii) the second historical charge capacity of the battery for the second region; and
adjusting a charging current of the battery based on the determined full charge capacity of the battery.