Battery charger, secondary battery unit and electric apparatus equipped therewith
US8040107B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mobile telephone has a rechargeable battery, and the rechargeable battery is charged through a battery charger; the battery charger includes an information processing system serving as a charge controller and a battery manager; the battery manager measures a discharging time period of the rechargeable battery so as to store pieces of duration data expressing a charge-and-discharge cycle, and determines a charge initiation level and a charge completion level on the basis of the pieces of duration data in such a manner to reduce the number of charging operation without shortage of electric charge for the rechargeable battery; and the charge controller carries out the charging with reference to the charge initiation level and charge completion level so that the rechargeable battery is prolonged in life time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.