US 11,757,138 B2
System and method of operating mobile information handling systems with rechargeable batteries
Adolfo Sandor Montero, Pflugerville, TX (US); Pei Mng Lin, Zhugi Township (TW); Chia Liang Lin, Taoyuan (TW); Shao Szu Ho, New Taipei (TW); and Jui-Chin Fang, Wenshan Dist (TW)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Apr. 19, 2021, as Appl. No. 17/234,318.
Prior Publication US 2022/0336869 A1, Oct. 20, 2022
Int. Cl. G01R 31/392 (2019.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); G01R 31/3835 (2019.01)
CPC H01M 10/4257 (2013.01) [G01R 31/3835 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/30 (2013.01)] 20 Claims
OG exemplary drawing
 
15. A battery management unit, configured to:
determine a plurality of voltage values associated with a rechargeable battery of a mobile information handling system over a period of time;
store the plurality of voltage values with respect to a plurality of clock values over the period of time;
determine a voltage drop rate from the plurality of voltage values and the plurality of clock values;
determine a threshold voltage value associated with a predicted energy capacity of the rechargeable battery for the mobile information handling system to perform a power state transition;
determine a voltage value associated with the rechargeable battery;
determine that the voltage value has reached the threshold voltage value; and
provide a notification to transition the mobile information handling system from an operational state to a power conservation state.