Power tool with light unit
US-9225275-B2 · Dec 29, 2015 · US
Lithium-based battery pack for a hand held power tool
US9018903B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018903-B2 |
| Application number | US-201313871172-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2013 |
| Priority date | Nov 22, 2002 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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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.
First claim
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We claim: 1. A battery pack comprising: a housing connectable to and supportable by a hand held power tool; a plurality of battery cells supported by the housing, each of the plurality of battery cells having a lithium-based chemistry, each of the plurality of battery cells being cylindrical and having a cell length of less than or equal to about 70 mm; first and second terminals for electrically connecting the battery pack to the hand held power tool; and a circuit configur…
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Frequently asked questions
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- What does patent US9018903B2 cover?
- 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 …
- Who is the assignee on this patent?
- Milwaukee Electric Tool Corp
- What technology area does this patent fall under?
- Primary CPC classification H02J7/485. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).