Method and apparatus for testing a battery
US4433294A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Jun 5, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The operating condition and/or characteristics of a battery is tested by obtaining the dynamic voltage-current characteristic of the battery as a function of the charge condition thereof. A controllably varying charging current is supplied to the battery, and the voltage produced across the battery while that current is supplied is measured. The dynamic voltage-current characteristic is obtained as a function of the measured voltage and supplied current. This voltage-current characteristic is compared to predetermined voltage-current characteristics representing batteries of the type being tested in order to determine the operating condition and/or characteristics of the battery under test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.