Yes, you can use this battery and charger with the Makita DUR181Z brushcutter, as it works with the Makita LXT 18 V battery system, which is compatible with 18 V Li-ion batteries like the one in the energy kit (18 V) you have. The battery has a voltage of 18 V and a capacity of 3 Ah, which corresponds to the type of battery used by the DUR181Z.