| 摘要 |
<p>A battery pack adapted to be attached to, and drive, a hand-held power tool includes a plurality of series-connected battery cells having a nominal power output of at least 300 Watts. The battery pack weighs less than 275 grams and has a nominal power output to weight ratio of at least at least 1100 Watts/kilogram. A power tool system or kit includes such a battery pack and a hand-held, battery-powered tool adapted to operate with a battery pack having a nominal power output of 600 Watts or more.</p> |
