The bottom of the converter: for Milwaukee M18 18V lithium-ion battery:M18 48-11-1828 48-11-1815 48-11-1840 48-11-1850 48-11-1860 48-11-1890, 18V lithium battery... for Milwaukee M18 18V lithium battery to Black&Decker/Porter Cable/Stanley 18V/20V(MAX) lithium battery tool, through this converter can be (Black&Decker)(Porter Cable)(Stanley) 18V/20V(MAX) lithium battery Use for Milwaukee M18 18V lithium battery on battery tools, let your for Milwaukee M18 18V lithium battery share battery with Black&Decker/Porter Cable/Stanley 18V/20V(MAX) lithium battery tools. Precautions: 1. The adapter has a protective plate. When not in use for a long time, separate the battery from the adapter to avoid damage to the battery 2. This adapter does not support charging the battery 3. There is only one adapter, not including batteries and electric drill tools. The appearance and color of products may vary with different batches, which will not affect the use Colour:black Material:plastic Package Contents: 1 x Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.