Title:
METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF RECHARGEABLE BATTERIES
Document Type and Number:
WIPO Patent Application WO2004012294
Kind Code:
A3
Abstract:
A method and apparatus are disclosed for automatically detecting the presence of a secondary cell and additionally differentiating between various types of secondary cells within the charger. Certain secondary cells include a band of ink that surrounds the cells and has a predetermined resistance that is detectable via charger contacts to identify the charging capability. The cell is detected using a pair of contacts that engage the outer surface of the cell at a predetermined location. The charger applies a charge to the cell that varies based on the sensed cell type.
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Inventors:
BUSHONG WILLIAM C
FREY KAREN A
LUNDERT LARRY J
ROSE JANNA L
SCHUMACHER RHONDA E
FREY KAREN A
LUNDERT LARRY J
ROSE JANNA L
SCHUMACHER RHONDA E
Application Number:
PCT/US2003/024009
Publication Date:
January 20, 2005
Filing Date:
July 31, 2003
Export Citation:
Assignee:
RAY O VAC CORP (US)
International Classes:
H01M10/00; H01M10/04; H01M10/44; H01M10/46; H01M10/48; H01M50/574; H02J7/00; (IPC1-7): H02J7/00; H01M2/02; H01M10/46; H01M10/44
Domestic Patent References:
| WO2002035618A1 | 2002-05-02 |
Foreign References:
| EP0926798A1 | 1999-06-30 | |||
| EP0984540A2 | 2000-03-08 | |||
| EP0766363A1 | 1997-04-02 |
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