???Compatible With Dyson Type A Series?For Dyson Type A Dc31 Dc34 Dc35 Dc44 Animal 917083-01....Only Works For Dyson Type A Vacuum Cleaners: 917083-01, 17083-2811, 18172-01-04, 17083-4211, 18172-0201, 917083-03 ( ? Not Fit Type B) | | ???Compatible With Dewalt 20V Max Lithium Battery?Compatible With Dewalt 20V 60V Max Xr Lithium Compact Cordless Tool Battery Packs Dcb203 Dcb204 Dcb205 Dcb206 Dcb606 Dcb609 Dcb612 Etc High Output Battery. Recommend To Use 4A And Above Batteries Because Of The High Power For Dys Vacuum. | | ???Adapter Advantage?This Adapter Enables The Listed 18V Lithium Batteries To Be Used On For Dyson 22.2V Dc31 Dc34 (Type A) Tools, And Lets You Enjoy The Benefits Of Extended Operating Time Of Lithium-Ion Batteries On Existing For Dyson Tools. | | ???Smart Protection System?This Adapter Complies With Fcc Rohs And Ce Security Testing Standards,Made Of High Quality Abs Plastic, Solid Design; Built-In Over-Discharge, Over-Voltage, Over-Current, And Over-Temperature .