Features: This adapter can make listed lithium batteries use on RYOBI 18V tools, and let you enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools. Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts. 1. With USB, when the mobile phone is temporarily out of power, you can charge the charging treasure function. 2. This adapter can make listed lithium batteries use for RYOBI 18V tools, and let you enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools. 3. Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts. Notice: Allows for use of 20V MAX batteries and replacement batteries in most batteries of for Dewalt and for use of 18V Lithium-ion batteries and replacement batteries in most batteries of for Milwaukee, etc. Use for RYOBI 18V power tools. USB port for charging phones and powering equipment that uses USB, and USB Line is not included. Can not be used for power tool battery charging, this adapter will not fit into any chargers. If you need to charge your power tool batteries, please use the original battery chargers. Package Include: 1x Adapter (Only Adapter, No Battery) When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it