➤Perfect solution to hand fatigue: YMWLKJ V7 battery adapter comes with UPGRADE Trigger Lock, which you don't have to hold down the button on your vacuum cleaner the whole time while cleaning. Just need to push down the brush button to start brushing.NO WORRY leads to hand fatigue. (Trigger Lock & Adapter are included)➤Compatible with Dyson V7 series vacuum: This V7 Battery Adapter is Compatible with Dyson V7 Motorhead/ Motorhead Pro, V7 Trigger/ Trigger with HEPA, V7 Car+Boat, V7 Absolute, V7 Fluffy, V7 Animal / Animal Pro +, V7 Mattress / V7 Cord-free, V7 Extra / SV11, 968670, 229687 ect. ( battery not include, ONLY for V7 series vacuums )➤Replace for DeWalt to for Dyson V7 Batteries: This V7 Battery Adapter is comply with FCC RoHS and CE security testing standards. Convert for DeWalt 20V Battery DCB200 DCB201 DCB203 DCB204 DCB205 DCB206 DCB207 DCB181-XJ, DCB181, DCB180, N123283, N123282, DCB201-2, DCB606-2, DCB609-2 to replace for for dyson v7 batteries. Which can perfectly power for Dyson V7 vacuum cleaners. (NOT for V6 V8 V10 V11 DC31 DC45 vacuum).➤More options & Longer Run Time: If you have this V7 universal attachment adapter, just need to snap on battery adapter to for DeWalt Batteries, which means you can use the V7 Series vacuum cleaner without the V7 original battery. How smart and What a convenience!( Note: The adapter cannot be used to charge the battery)➤Multiple Safe Protections: Made of High-quality Fireproof ABS material, it provides over-voltage, over-current, overheats and short circuit protection. Diagnostics with indicator light to communicate battery working status.“Green Light” means normal work, “Red Light” means the battery is running out. Just remove the battery after use. 24 hours friendly customer support, 1-year warranty, If you have any problem with your DW20V7 adapter, Please contact us to help you to solve it!