Husqvarna S138i Scarifier - Efficient, battery-powered scarifier with 2-in-1 function.Husqvarna S138 a lightweight, battery powered scarifier with easy shift between moss rake and scarifier. The easily adjusted working depth and powerful engine efficiently remove matted thatch and moss from the lawn. Dual battery slots allow you to work for more extended periods between charges. The compact design and foldable handle make it easy to transport and store.