Cordless Vacuum Runtime, Explained
"Up to 60 minutes" on the box sounds like an hour of cleaning. In real use, it's often much less. Here's why, and how to compare vacuums fairly.
The "up to" number is the best case
Makers usually measure runtime in the most favorable setup:
- The lowest power mode, often called Eco.
- A small, unpowered tool, like the crevice tool, instead of the motorized floor head.
- Sometimes at the hand vacuum, with no wand or head attached.
The powered floor head and higher modes use much more battery.
A real example
The Levoit cordless vacuum with HEPA lists all three numbers clearly: up to 60 minutes with the crevice tool in Eco, 40 minutes with the floor head or mini motorized brush in Eco, and 12 minutes in Turbo. That's a good habit to look for in a listing.
How much runtime do you need?
Rough guide, using the floor head on a normal mode:
- Apartment or small home: 20 to 30 minutes is usually enough.
- Medium home: around 30 to 45 minutes.
- Large home, or lots of rugs: 45 minutes or more, or a second battery.
Most people don't vacuum the whole house in one go, so you may need less than you think.
Ways to get more cleaning per charge
- Use Eco or medium modes on hard floors. Save boost for rugs and crumbs.
- Empty the bin and clean the filter. A clogged filter makes the motor work harder.
- Get a swappable battery. Some vacuums, like the roborock H60 Ultra-B, have a detachable battery you can swap for a spare.
Battery life over the years
Lithium-ion batteries slowly hold less charge as they age. A vacuum that runs 40 minutes when new may run less after a few years. A replaceable battery means you can restore it without buying a new vacuum.
For five cordless vacuums compared on runtime and features for hard floors, see our cordless vacuum for hardwood floors comparison.