Your lawn grows quickly, you plug in the mower, and ten minutes later the cord wraps around the table leg. Or the battery dies halfway through. These two scenarios summarize the main dilemma when choosing an electric mower suitable for your yard. The perfect model on paper can become a concrete problem if you overlook a few simple technical parameters.
Noise regulation and electric mowers: what the labels didn’t say before
Have you noticed that recent mowers display a decibel level on their packaging? This is not a marketing argument. Directive 2000/14/EC and Regulation (EU) 2016/1628 require manufacturers to measure and declare the noise level of outdoor equipment.
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In practice, this has pushed manufacturers to develop quieter electric motors. Recent electric mowers generally range between 70 and 85 dB, whereas a gas model often exceeds 90 dB. The difference is not only evident on a technical sheet: every 10 dB increase doubles the perceived sound.
Before buying, compare the declared decibels (noted LWA on the label) and not just the power. A model rated at 75 dB will allow you to mow early in the morning without triggering a neighborhood conflict. Comparators like https://www.tondeuse-electrique.net/ rank models based on this criterion, making sorting easier.
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Wired or battery mower: the real criterion is the shape of the terrain
Most guides pit wired against battery based on the area. This is a good starting point, but the shape of your garden matters just as much as its size.
A long, obstacle-free terrain is well-suited for a wired mower. You pull the cable in a single direction, without the risk of snagging it. The motor runs continuously, and the power remains constant. For a modest-sized rectangular garden, this is the most reliable and cost-effective solution.
On the other hand, an L-shaped garden, with flower beds, trees, or a terrace in the middle, makes the cord unmanageable. Here, a battery mower eliminates the problem. You can navigate around obstacles freely. The compromise lies in the battery life: check the voltage (expressed in volts) and capacity (in ampere-hours, noted Ah). The higher these two values, the longer the battery lasts.
Tip for mixed terrains
If your garden combines a large open area and corners, one option is to use the electric mower for the main part and a battery trimmer for the finishing touches. It’s better to have two suitable tools than one that does everything halfway.
Cutting width and motor power: adapting the mower to the actual surface
The cutting width determines the number of passes needed to cover your lawn. This is the parameter that most influences mowing duration.
- For a small garden, a cutting width of about 33 cm is sufficient. The mower remains lightweight, maneuverable, and can be easily stored in a small shed.
- For a medium area, aim for a width of 38 to 43 cm. You reduce the number of back-and-forths without sacrificing maneuverability in narrow passages.
- Beyond that, battery models with a width of 46 cm or more can cover large spaces, but their weight increases. Check if the model is self-propelled.
The motor power should match the cutting width. A motor that is too weak paired with a wide blade will stall in wet or dense grass. For a wired mower, power is measured in watts. For a battery mower, the voltage in volts provides the most reliable indication of the motor’s ability to maintain a stable speed.
Adjustable cutting height: a detail that changes the result
Set the cutting height according to the season, not according to your aesthetic preferences. In summer, grass cut too short turns yellow and weakens. An adjustment with multiple positions (at least three) allows you to adapt the height throughout the year. Models with a centralized lever make this adjustment easy with one motion, without disassembling anything.
Mulching, collection bag, and maintenance of the electric mower
Mulching involves finely shredding grass blades to deposit them back on the lawn. This is not just a gimmick: shredded grass decomposes and nourishes the soil. You reduce trips to the composter and provide organic matter to your lawn.
Not all models offer this function. Some come with it built-in with a cap that closes the rear ejection. Others require a mulching kit sold separately. Check mulching compatibility before purchase if you want to limit maintenance.
The collection bag remains useful when the grass is tall or wet, as mulching works less effectively under these conditions. A bag with sufficient capacity prevents you from having to empty it every two minutes. Also, check if the bag has a fill indicator.
Connected mowers: useful or superfluous?
In recent years, brands like Gardena (Smart System) or Bosch (Bosch Garden app) have offered mowers capable of sending data about battery status, mowing time, or blade wear via an app. Anticipating a battery replacement or sharpening is better than waiting for a breakdown.
This connectivity adds a cost to the purchase price. For intensive use or a large garden, tracking wear may be justified. For a small area mowed once a week, regular visual checks of the blades and a basic charger do the same job.
The choice of an electric mower relies on three concrete parameters: the shape of the terrain, the cutting width suited to the surface, and the presence or absence of the mulching function. The noise declared on the label also deserves a look, especially if you mow in a residential area. Take five minutes to measure your lawn and identify its obstacles before comparing technical sheets: this is the only way to avoid a purchase that will end up at the back of the garage.