Cordless and electric mowers at Stiftung Warentest

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Avoiding weeds, strengthening the lawn and promoting growth: mowing the lawn regularly is the be-all and end-all of lawn care and ensures a healthy lawn. The Stiftung Warentest has taken a close look at battery-powered and electric lawnmowers.

Lawn mowers are one of the most important garden tools and are essential for lawn care. So that the device is also robust and lasts a long time, you should pay attention to the quality when buying it. In the current Lawn mower test by Stiftung Warentest Cordless and electric lawnmowers were compared with one another and checked for functionality and durability.

Cordless models promise more simplicity when mowing the lawn: no acidic gasoline smell, no loud engine noises and no restrictive cables thanks to battery operation. But can the expensive but flexible cordless mowers overtake the inexpensive and light electric models in the lawn mower test? We present the test results to you.

So was tested

In the current test issue 04/2021, Stiftung Warentest examined a total of 15 rotary mowers. The cutting width varies between 33 and 42 centimeters for the models. Nine cordless lawnmowers and six electric lawnmowers, all without wheel drive, were tested. Among other things, the mowing performance, handling and durability were evaluated.

The test result: Cordless lawnmowers win

The cordless lawnmowers were particularly impressive in the test. Stiftung Warentest named the mower the test winner GE-CM 36/36 Li from Einhell with the overall grade “good (2.0)”. It mows well and is easy to use. Also recommended are the lawn mowers from Alpina and Makita, both of which received the overall grade “good (2.4)”.

In the end, only one device was able to convince among the tested electric lawn mowers. Of the RME 235 from Stihl was the only wired model to achieve the overall grade of “good (2.3)”.

The test winner: cordless lawnmower GE-CM 36/36 Li from Einhell

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The test result: The cordless lawnmower from Einhell achieved the test quality rating of “good (2.0)” and thus achieved first place. It mows dry as well as tall and damp grass equally well and, thanks to the two batteries supplied, manages almost 400 square meters of lawn in the test.

Product details: The cordless lawnmower is supplied with two Power X-Change System batteries and two suitable chargers. Both batteries are required for commissioning. Thanks to the 6-stage cutting height adjustment, the cutting height can be adjusted from 2.5 to 7.5 centimeters. The cutting width is 36 centimeters and the grass catcher has a capacity of around 40 liters. With a total weight of 19.5 kilograms, it is relatively heavy.

The spacious one: BL 410 Li Alpina cordless lawnmower

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The test result: The cordless lawnmower from Alpina received an overall rating of “good (2.4)” in a test by Stiftung Warentest. It was particularly convincing when mowing tall grass and filled the grass catcher properly.

Product details: The Alpina model is supplied with a 4 Ah battery and charger. The cutting height can be adjusted in five positions from 2.7 to 8 centimeters using four levers. The cutting width of 41 centimeters is particularly practical, as rapid work progress can be expected. The capacity of the grass catcher offers enough space with 55 liters. At 22 kilograms, however, the model is significantly heavier than the test winner, for example.

The fast charger: Makita cordless lawn mower

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The test result: The Makita cordless lawnmower landed in the same place with the Alpina machine with an overall rating of “good (2.4)”. The lawnmower charges with a high charging current in just 36 minutes, making it the fast charger in the test. It is also easy to use and easy to clean.

Product details: The robust lawnmower is delivered including the two BL1840B batteries and the DC18RD double quick charger. The cutting height adjustment enables the cutting height to be individually adjusted from 2 to 7.5 centimeters. With a cutting width of 38 centimeters, the lawnmower is in the good midfield. The grass catcher basket, on the other hand, with a capacity of 40 liters, is smaller and just as big as the test winner. With a weight of 16.9 kilograms, it is the lightest of the presented cordless lawnmowers.

The best electric lawnmower: RME 235 from Stihl

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The test result: The electric lawnmower from Stihl was the only wired model to receive the overall grade of “good (2.3)”. Like the other electric mowers, however, it only mows satisfactorily, but convinces with good durability and a hinged lid on the grass catcher.

Product details: The light and compact electric lawnmower from Stihl has an integrated cable strain relief with which the extension cable is securely held on the device. The central cutting height adjustment can be adjusted in five stages from 2.5 to 6.5 centimeters. Due to the narrow cutting width of 33 centimeters and the smaller grass catcher volume of around 30 liters, the electric mower is more suitable for small to medium-sized lawns up to 300 square meters. The weight of only 13 kilograms is positive in comparison with the heavy cordless lawnmowers.

Our conclusion

Due to the merely satisfactory mowing performance of the electric lawnmowers, the cordless lawnmowers won the test by Stiftung Warentest. They mow tall, dry and even damp grass well and the battery performance has also improved. Of the Einhell test winner is not only the best in the test, but also a real price-performance tip.

If you still tend towards an electric lawnmower, this is it Lightweight from Stihl to recommend. It is the best electric mower tested.

Interesting facts about lawn mowers

What is a rotary mower?

Sickle mowers are lawn mowers that have a horizontally mounted sickle knife with a curved blade that starts to rotate at high speed and thus cuts the lawn. So-called cylinder mowers are a good alternative for small gardens. The blades of these mowers are on a horizontal roller.

When should the blades on the lawn mower be changed?

Blunt lawnmower blades should definitely be changed, otherwise the blades of grass will be torn off and not cut cleanly. Depending on the period of use and frequency, changing the knives can be different. It is advisable to change the knives before the first cut in spring.

When can the lawn be mowed after winter?

After winter, the lawn should only be mowed when there is no longer any frost on the lawn and the temperatures are permanently above 0 degrees Celsius. Depending on the weather, the first lawn cut of the year should be made in April at the latest. When mowing for the first time, the lawn should not be cut short immediately. Otherwise the blades of grass cannot recover sufficiently. Set the cutting height of the lawnmower higher accordingly.

What are the benefits of a mulching function on a lawn mower?

In principle, the lawn can be mulched with any lawn mower. However, since the lawn cut is usually too coarse, lawn mowers should be equipped with a mulching function if you want to mulch the lawn. This means that the clippings are not caught in the grass catcher, but are chopped up and thrown back onto the sward. In this way, the nutrients contained in the grass are returned to the lawn.

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Cordless electric mowers Stiftung Warentest

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