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A robotic lawn mower is a self-directed robot designed to cut lawn grass. It primarily moves with the help of border wire, which is drawn across the boundary of the lawn. It is equipped with processor and sensors to sense the boundaries to be cut. It is also equipped with batteries such as lithium-ion, lead-acid, and nickel-metal hydride (NiMH). Currently, voice-activated all-wheel drive (AWD) is available in the market. These autonomous robotic lawn mowers are placed for limited areas up to 30,000 m2 (320,000 sq ft) of grass.
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