Robot vacuum lifespan: how long does it last?
Robot vacuum: 4 to 6 years on average, so around 5 years in normal household use. Regular maintenance routinely pushes past the top of that range.
A robot vacuum lasts 4 to 6 years on average. The robot itself is almost never what fails first: its lithium-ion battery is, lasting 2 to 5 years, with runtime often dropping noticeably by the second or third year.
The good news is that the battery, brushes and filters are consumables, designed to be replaced. A maintained robot that gets one new battery passes 6 years without trouble, for a fraction of the price of a new machine.
Thinking of buying one?
- Expect 4 to 6 years of use for a well-maintained model.
- 5 maintenance tasks decide how long it lasts.
Just bought one? Record its warranty in Delvyia: you will be warned before it runs out, and the receipt stays within reach.
Record my applianceSigns it is reaching the end
- Runtime drops: the robot returns to its dock before finishing its usual round
- It circles, bumps into things or misses areas (dirty sensors)
- The main brush no longer turns freely, wrapped in hair
- Suction weakens although the bin is empty (clogged filter)
- It no longer finds its dock, or no longer charges fully
The maintenance that extends its life
Empty the dust bin
How often: after every run
Untangle the main brush and the side brushes (hair, pet hair, threads)
How often: every 2 weeks
Tap out and rinse the filter, then let it dry completely
How often: every month
Wipe the sensors and the charging contacts with a dry cloth
How often: every month
Replace the filter and check the wheels and their axles for wear
How often: every 6 months
Repair or replace?
Before considering replacement, look up the price of a compatible battery: often 30 to 60 €, and a job you can do at home on most models. It is the most common failure and by far the cheapest to fix. Beyond that, a dead mainboard or motor unit on a robot older than five years usually justifies replacement, not least because navigation has improved a great deal.
Frequently asked questions
How long does a robot vacuum battery last?
From 2 to 5 years depending on use and charge cycles. A clear drop in runtime by the second or third year is normal. On most models the battery can be replaced for 30 to 60 €, which gives the machine several more years.
Why is my robot picking up less dirt?
In order of frequency: the filter is clogged, the main brush is wrapped in hair, or the bin is full. These three checks fix the vast majority of suction problems, with no parts to buy.