Product details: (1). With MT18DW12, You can use the (for ) 18V lithium battery on the (for ) 12V lithium battery tool, replacing the (for ) 12V Lithium Battery (DCB120 etc.). MT18DW12 is suitable for 18V li-ion battery Compatible battery model: (1).Suitable for 18V lithium battery 18V: BL1815 BL1830 BL1840 BL1845 BL1860 and so on Tips: BL1415G BL1430G BL1815G BL1830G and all G series battery is not supported (2). It also applies to the lithium battery pack with the following interface: as HongSong / / BoDa / / ZhiPu / JiangMi 18V lithium battery Notice: Can not be used for power charging, this adapter not fit into any chargers. If you need to charge your power tool batteries ,please use the old battery chargers. The text color on the product label is random due to different batches and does not affect normal use. Material: plastic colour: black Package Contents: 1 * Battery Adapter(Batteries not included) 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.