Method for operation of device using battery state of health
US10594145B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2017 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Apr 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for operating a portable electronic device are presented. The device includes a battery and a controller. The controller is configured to execute instructions for determining a first resistance value for the battery during a first power cycle of the battery, and determining a second resistance value for the battery during a second power cycle of the battery. The second power cycle is after the first power cycle. The controller is configured to execute instructions for determining that a first difference equal to the first resistance value subtracted from the second resistance value is less than a first predetermined threshold value, and electrically isolating the battery. In an embodiment, the first resistance value and the second resistance values are determined at the same state of charge for the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.