Tech

Einhell Freelexo 1200 LCD BT test: a connected robotic lawnmower with a removable battery that is as durable as it is sensitive

As connected as it is, the Freelexo 1200 LCD BT robotic lawnmower still maintains a basic mode, moving randomly across the lawn and changing direction when it encounters an obstacle. The method may seem archaic, especially when compared to the intelligent movements of robotic vacuum cleaners, but it’s proven and compares well with a mower.

The risk of seeing tracks on the lawn is even reduced. And from experience we can say that this does not prevent the robotic lawnmower from covering the entire surface. It simply takes longer, which is less of a nuisance as the noise level is low and you don’t normally spend as much time on your lawn as you do in your home. That said, we can of course stop the mower at any time as long as it can mow long enough during our absence.

Such a robot is also designed to mow every day for an even result, with no visible difference in grass height from one part of the lawn to another. While we remain convinced that the future of robotic lawnmowers also lies in smarter methodical navigation – if only to save energy – it is clear that any mowing mode can deliver good results.

The robot still has to be cunning enough to get out of complicated situations: tight spaces, narrow passages, cavities and bumps are all traps that only well-designed algorithms can manage effectively so as not to end up with a mower that is constantly blocked or too much money takes a lot of time in certain areas. In the present case, that is exactly what is wrong with this Freelexo that has repeatedly fallen into the trap on our land. The kiddie hut posts are certainly tricky, but most of the robotic lawnmowers that have passed our proving ground manage to get out.

Likewise, because of a very low bumper that catches the smallest clump of grass that is a little too dense or trips if the mower rolls into a pothole, many cuts in cutting occur. The Freelexo then stops mowing, moves backwards, forwards or changes direction, sometimes persistently until it stops, even though the lawn has already been mowed to a height of less than 50mm. Adjusting the cutting height to the maximum (60mm) does not change anything. Annoying, because it takes a bit of work to fill gaps or cut harder around areas that aren’t necessarily distracting.

Also note that the edge mowing option does not solve this problem in any way, as the robotic lawnmower tends to cling to the grass that has just grown around the edges, and is limited by the center of the cutting disc used. inevitably a good uncut result gives width to the edge. Fortunately, when he returns to his base to recharge, the Freelexo runs along the left side of the perimeter wire (i.e. inside the lawn), reducing the risk of immobilization with a dead battery.

This robotic lawnmower is too sensitive and we would have liked to see it more autonomous. A pity, because otherwise it ensures a good quality work due to its small, very sharp blades. However, the cutting width of 18 cm is not very large and 1200 m² is better not to be spoiled if you do not want the mower to work day and night. However, the Freelexo offers a good run time to charge time ratio giving you approximately 2 hours and 30 minutes of mowing for a calculated charge of 1 hour and 45 minutes.

Consumption remains reasonable at 0.07 kWh per charging cycle. When used to the maximum, it can therefore guarantee 5.6 mowing cycles per 24 hours. Reduced to five complete cycles, this amounts to a consumption of 0.35 kWh/day. Added to this is the undercarriage consumption, measured at 2 W when the mower is working (ie 0.025 kWh over five cycles) or waiting for the undercarriage to charge once it has been charged. Over a period from March to October (275 days), a total consumption of 103 kWh is calculated, or approximately €18/year (rate of €17.40/kWh) for the Freelexo 1200 LCD BT.