Choosing a cordless lawnmower can feel like navigating a maze of specifications. Voltage, cutting width, battery capacity; the wrong choice can lead to frustration and a lawn that doesn't look the way you want. This guide will help you understand the key parameters, so you can select a model that truly fits your garden and your needs. We focus on facts and specifications, without marketing jargon.
Before you start comparing models, it's helpful to know the most important specifications. These determine how the machine will perform in your specific situation.
The voltage (V) of a cordless lawnmower indicates the power of the motor. An 18V lawnmower is typically sufficient for smaller, simple lawns. For thicker grass or a larger area, a 36V lawnmower (sometimes achieved by combining two 18V batteries) offers noticeably more power.
The capacity, expressed in amp-hours (Ah), determines the runtime. A higher Ah value means you can mow for longer on a single charge. A 4.0Ah or 5.0Ah battery is a common choice for a good balance between weight and runtime.
The cutting width is the width of the strip of grass the mower covers in a single pass.
A cordless mower with a mulching function finely shreds the grass clippings and spreads them over the lawn. This acts as a natural fertiliser. Most models also offer a collection bag. Some have a side or rear discharge option for when the grass is too long to bag or mulch.
A lightweight cordless mower is easier to handle, especially in gardens with many corners or slopes. Also, look for adjustable and foldable handlebars. This not only improves comfort while mowing but also saves significant storage space.
One of the major advantages of a cordless lawnmower is its lower noise level compared to petrol models. This makes it a quiet mower, which is more pleasant for you and your neighbours. The noise level is expressed in decibels (dB).
Below is a selection of models, chosen based on their specifications and suitability for different types of lawns.
The models above are a selection based on popular specifications. However, your garden may have unique requirements. Perhaps you are looking for a model with a different cutting width, a different battery system, or specific features. For a broader overview of all available models, you can browse our entire collection.
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The runtime of a battery depends on its capacity (Ah), voltage (V), the height and density of the grass, and whether the grass is wet or dry. On average, you can mow for 25 to 45 minutes with a 4.0Ah or 5.0Ah battery, which is sufficient for most lawns up to 500 m².
A mulching function can be very useful. It shreds the grass and leaves it behind as a natural fertiliser for your lawn. This saves you the effort of emptying the collection bag. It works best if you mow regularly (at least weekly) and the grass is not too long. For a less frequently maintained lawn, a collection bag is more practical.
The voltage determines the power. An 18V lawnmower is lighter and ideal for standard lawn maintenance on smaller areas. A 36V lawnmower (often 2x18V) delivers more torque and power, allowing it to perform better in tall, dense, or damp grass and on larger lawns. The choice depends on the demands of your lawn.