Shark Runner up – best cordless vacuum overall Shark Cordless PowerDetect Clean & Empty System Battery life: 70 min | Weight: 18 pounds | Charging dock: Yes Shark's latest cordless vacuum, the PowerDetect, earned the runner-up spot here thanks to its strong suction power, self-emptying base and overall good value for the money. LEVOIT Best budget cordless vacuum Levoit LVAC-300 Cordless Vacuum Cleaner Suction power: 240W | Bin capacity: 0.75 liters | Battery life: 60 min | Weight: 6.6 pounds | Charging dock: No Levoit's latest LVAC-300 stick vacuum beat out our previous pick in this category, the Tineco Pure One S11, thanks to its more premium design, easier handling and superior suction.