Electric lawnmower (corded vs. battery-powered): how to choose in Portugal
Because this choice makes such a difference.
"Electric lawnmower" seems like a simple category, but in practice there are two worlds: corded (230V) and battery-powered (cordless) . The right decision depends less on the brand and more on your lawn : square meters, obstacles, slopes, mowing frequency, and even where you have outdoor power outlets.
In Portugal, the demand for quieter, combustion-free solutions has been increasing (less smell, less maintenance, and simpler use), and both wired and battery-powered models have evolved considerably. Even so, each has typical "pitfalls"—and this guide exists to help you avoid them.
The first step: measure the lawn (even if you have to "eyeball it").
Before looking at the prices:
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Up to ~200–300 m² : wired or battery-powered options usually work well.
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300–600 m² : battery life starts to make more sense, but range needs to be carefully considered.
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Beyond that : it's worth considering a more "serious" battery (greater capacity) or even a robotic lawnmower (topic of cluster #2).
A practical guide (in Portuguese) also recommends evaluating garden typology, cutting width, and frequency of use before choosing.
Corded (230 V): for those who want to "plug and go"
Real advantages
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Infinite autonomy : it doesn't depend on batteries.
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Lower entry price : generally cheaper than a "battery + charger kit".
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Significantly lighter weight : easy to maneuver and store.
Disadvantages (the ones that are really annoying)
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Cable management : the risk of "eating" the wire exists.
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Limited range : requires a nearby socket and suitable extension cord.
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It doesn't go well with heavily landscaped gardens : flowerbeds, trees, paths, and obstacles.
Quick checklist (thread)
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Do I have an external power outlet or can I use a safe extension cord?
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Does the lawn have many obstacles/curves? If so, the string may tire.
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Can I cut in "lines" without crossing the cable?
Electrical safety in the garden (very important)
When using electrical equipment outdoors, it is recommended to use residual current device (RCD) protection and to take precautions using outdoor extension cords that are fully unrolled and suitable for the intended use.
Rule of thumb: if you don't have RCDs on the frame, use an RCD plug .
The battery: total freedom (if you choose the platform well)
Real advantages
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Cordless : faster and more practical in gardens with obstacles.
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Mobility : great for homes where the power outlet isn't "in the right place".
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Less stress : ideal for cutting by "zones" (front today, back tomorrow).
Disadvantages
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Battery life and charging time : vary greatly between models.
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Cost : often you pay for the "platform" (battery + charger).
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Weight : Larger batteries increase weight.
What governs autonomy (and almost nobody cares)
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Grass height (tall grass = more effort)
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Moisture (wet grass is heavy and "sticky")
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Cutting width and cutting height
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Downhill slopes (higher fuel consumption)
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Battery capacity (Ah/Wh) and motor efficiency
Tip: If you want batteries, think of them as an "ecosystem." Buying a brand where you can use the same battery in trimmers, blowers, etc., can be cheaper in the long run.
Features that are worth money (wire or battery)
1) Cutting width
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Small gardens: narrower width = more maneuverability.
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Larger gardens: greater width = fewer passages (faster)
2) Cutting height (and easy adjustment)
Look for simple adjustments (a central lever is more convenient). The right height prevents the grass from "scalping" and improves its appearance.
3) Collection vs. mulching
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Collection : cleaner lawn, more work to empty.
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Mulching : returns nutrients to the soil and reduces waste; requires more frequent mowing (short grass).
4) Wheels and traction
If there are slopes, larger wheels and better grip make a difference (especially on wet grass).
Noise: how to objectively compare "noise"
In the EU, there is legislation for noise emissions from equipment used outdoors (including garden machinery). The aim is to reduce noise and inform consumers through marking the guaranteed sound power level (LWA) .
In Portugal, information regarding marking/obligations for this equipment is also framed by national legislation and institutional guidelines.
In practice: compare equipment using LWA (not just "dB" in the advertising).
Common mistakes (that cost money)
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Buying a weak battery "because it's cheaper" and then having to buy another one.
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Ignore the slope and the condition of the terrain (uneven grass/roots).
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Underestimating noise and creating conflict with neighbors (see cluster #3).
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Always cut tall grass: any machine will struggle, wear out faster, and leave a worse finish.
Mini-FAQ
1) Is a battery-powered lawnmower suitable for any lawn?
It works, but it needs to be sized according to the area, slope, and frequency.
2) Is wire dangerous?
No, if you use an outdoor extension cord and RCD , and if you manage the cable well.
3) Can I mow wet grass?
Technically, some can manage it, but it increases the risk of slipping, worsens the cut, and can affect electrical safety.
4) Is mulching worthwhile?
Yes, if you mow more frequently and keep the grass shorter.
5) What does LWA mean?
It is the sound power level (standard in the EU marking for certain outdoor equipment).
6) For gardens with many flowerbeds, which is better?
Usually a battery (less "fighting" with the cable).