About this item Product Advantages：This adapter can make listed lithium batteries use for Dewalt 20V max lithium cordless power tools,and let you enjoy the benefits of extended run-time of li-Ion batteries on your existing 20V tools. Compatible with battery：Allows for use of 18V lithium batteries and replacement batteries in most batteries for Bosch BAT609,BAT610, BAT611, BAT612,BAT618, BAT6 l 8G, BAT619, BAT619G, BAT620 etc. Use for tool models：Use for Dewalt 20V MAX lithium cordless power tools ：DCD777C2/DCD791B/ DCD780B/DCD740C1/DCD740/ DCF880C1-JP/ DCF883B/ DCF883L2/DCF885C1/DCG412B/ DCG412L2/DCG412/DCS331B/ DCS331L1/ DCS331L2/DCS331N Applicable Battery Voltage：Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts Notice：It cannot be used to charge the battery of a power tool, and the adapter cannot be plugged into any charger. If you need to charge the power tool battery, use the original battery charger. Specification: Item Type: Battery Adapter Product Model: BS18DL Input Voltage: 18V Application: Suitable for Bosch 18V lithium battery tools Package List: 1 x Battery Adapter 1 x User Manual Note: 1. If the converter is not used, the converter must be separated from the battery. 2. Please unplug the converter when charging the battery. The battery cannot be charged through the converter.