1. For Dewalt To V7 Battery Adapter: Dw20V7 Is An Converter Adapter, Not Battery, Not Charger. Convert For Dewalt 20V 60V Battery Into V7 Battery Replacement, Then Work For Dyson V7 Vacuums (Only Dw20V7 Adapter Included In Package, No Battery) | | 2. Work For Dyson V7 Series Vacuum Cleaner: Only For Dyson V7 Vacuums, Not For V6 V10 V11 V12 V15. | | 3. Compatible With Dewalt 20V 60V Battery: But Not Compatible With Dewalt Powerstack Batteries. | | Note: As Rated Power Of V7 Cacuums Is Very High, You Must Use 4Ah Batteries Or Above, And Please Fully Charge For Dewalt Battery Before Using It To Run Vacuums. | | Note: Dw20V7 Adapter Doesn'T Support For Dyson Original Battery Charger, You Must Remove Dw20V7 Adapter From For Dewalt Battery, Then Use Original Battery Charger To Charge For Dewalt Battery. | | More Options Longer Run Time: Just Snap On The Dw20V7 Adapter To Dew 20V 60V Battery, It Can Run V7 Series Vacuum Cleaner Without V7 Original Battery. How Smart And W.