The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
May. 16, 2022
Studsvik Inc., Wilmington, NC (US);
David D. Heilman, Geneseo, IL (US);
Benjamin P. Youman, Davis Junction, IL (US);
STUDSVIK INC., Wilmington, NC (US);
Abstract
A method for determining battery health includes discharging a battery such that its voltage decays exponentially from a first voltage value to a second voltage value over a first duration. The method includes, during the first duration in which the voltage of the battery decays from the first voltage value to the second voltage value, selecting a third voltage value at which the voltage of the battery is depleted at a constant test drain rate. The method includes applying a load to the battery at the third voltage value for a second duration, withdrawing the load from the battery after the second duration has lapsed, and determining a fourth voltage value of the battery after the load was withdrawn. The method also includes determining an indication indicative of a state of health of the battery based on a difference between the third voltage value and the fourth voltage value.