Bosch Professional's ProCore Professional (18V) battery is compatible with tools in the 18V range, including the Bosch Professional GSS 18V-13 cordless sander. However, it is important to check that the battery is suitable for the specific tool system. The GSS 18V-13 is designed to work with Bosch 18V series batteries, and the ProCore 18V 4.0Ah is often recommended for this sander.