Can a cordless vacuum replace my corded upright?

Yes — the top cordless vacuums in 2026 match or exceed corded uprights in suction power. The Dyson V15 Detect and Samsung Bespoke Jet both outperform most corded vacuums on carpet debris pickup. The only limitation is runtime on max power mode, which is 8-15 minutes versus unlimited for corded.

How long do cordless vacuum batteries last before replacement?

Lithium-ion batteries maintain 80% capacity for 2-3 years of regular use (300-500 charge cycles). Dyson and Samsung sell replacement batteries for $70-100. To maximize battery lifespan, avoid leaving the vacuum on the charger 24/7 and don't consistently run the battery to zero.

Is the Dyson V15 worth it over the V12?

The V15 adds the laser dust reveal, LCD particle counter, and a larger dustbin. If you want to see exactly what you are picking up and get confirmation that floors are clean, the V15 is worth the premium. If you just want strong suction, the V12 delivers 90% of the cleaning performance at a lower price.

Best Cordless Vacuums 2026