This adapter can make listed lithium batteries use for 18V lithium cordless power tools, and let you enjoy the advantage of extended run-time of li-Ion batteries on your existing tools. Design is simple, , convenient. For a long time do not use, please separate from the battery. This converter does not support the ability to charge the power Product name: Battery Adapter Base: Compatible with for 18V lithium battery With MT20RNL, you can use the following battery on for 18V tools: For Mikita 18V Li-ion Battery: BL1815 BL1830 BL1845 BL1860 BL1890 etc. WARNING: 1.Make sure that the battery is fully inserted for normal use 2.Please do not force into the battery pack, if the battery pack can not be installed, the installation may be wrong 3.This product is only compatible with the tools, not compatible with the charger, Do not use the adapter to charge the battery. Note: a. This product is only adapter. No includes the battery and machine in the picture. b. This product does not include machine and battery. The machine and battery in the product description are only used to show the productsCan not be used for power charging, this adapter will not fit into any chargers. If you need to charge your power tool batteries ,please use the old battery chargers. Due to different production batches, the label words on the product are random. The actual product may have slight differences or color differences. This does not affect the applicability. Colour:green Material:plastic Package Contents: 1 x MT20RNL Battery Adapter (Only Adapter, No Battery) MT20RNL, MT18RNL numbers are shipped randomly, don't accept the specified 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.