An apparatus for cutting grass comprising: a lawn mower (1) equipped with: movement means (20) for movement of said lawn mower (1) at least inside a cutting area (S), one or more blades (30) for cutting grass in said cutting area (S), a power supply unit (70) for supplying electrical power to one or more of said movement means (20) and said one or more blades (30) a recharging base (80) for said lawn mower (1), comprising at least a first inductive element (E1) and a first control unit (85) associated with said first inductive element (E1) and configured to enable the flow of a certain current (I) in said first inductive element (E1). The lawn mower (1) comprises a second inductive element (E2) associated with said power supply unit (70) and couplable to said first inductive element (E1) for a recharging of said power supply unit (70), and a second control unit (75). The second control unit (75) is configured to generate a charge signal (CS) representative of a charge level of said power supply unit (70) transmit said charge signal (CS) to said first inductive element (E1) through said second inductive element (E2). The first control unit (85) is configured to receive said charge signal (CS) through said first inductive element (E1) regulate said current (I) based on said charge signal (CS).
