| 摘要 |
<p>A plug-in battery pack (1) for an electric tool comprises a mechanical coding system with counter coding for battery tool operation in the plug-in direction. The coding (16) comprises at least one projection on the tool side with a corresponding recess on the battery side. Preferably, the recess comprises at least two walls at a separation corresponding to the thickness of the projection. An independent claim is also included for a coding system for the above pack.</p> |
