Product Description: Converter bottom: Compatible with series 18V/20V(MAX) lithium battery; Adapter Top: The top of the adapter is compatible with 20V cordless power tools (WG151, WG251, WG540, WG891, WG151, WG151.5, WG800.1 power tools can be used). The corresponding lithium battery is 20V WA3520 WA3525 WA3575 WA3578 power . The bottom of the converter is suitable for series 18V/20V(MAX) lithium battery: DCB180 DCB182 DCB201 DCB203BT DCB206 DCB609, 18V/20V(MAX) lithium-ion battery... For 18V/20V lithium battery conversion to 6-pin 20V lithium battery tool, through this converter you can use 18V/20V lithium battery on 6-pin 20V lithium battery tool, so that your 18V/20V lithium battery can be used with 6-pin 20V lithium battery tool sharing battery. This converter does not support () 18V/20V lithium battery and 20V lithium battery shared charger! 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. There is only one adapter, not including batteries and electric drill tools. The appearance and color of products with different batches, which not affect the use Color: 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.