Dyson vacuum with Milwaukee battery hack. "Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should." : r/MilwaukeeTool
Amazon.com: DTK 25.2V 4000mah Battery for Dyson V10 SV12 Absolute V10 Animal V10 Motorhead 969352-03 Vacuum Cleaner (Not fit: V12 and SV10) : Home & Kitchen
Amazon.com: Fancy Buying 4600mAh V7 Upgraded Li-ion Battery for Dyson V7 Absolute Motorhead Animal Trigger HEPA Car+Boat Fluffy SV11 Battery [ONLY Fit for V7 Series] Handheld Vacuum Cleaners : Home & Kitchen