Lithium-based battery pack for a hand-held power tool
US7554290B2 · kind B2 · utility
47Cited by
36References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2007 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jul 20, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.