Radiodetection S13 Sonde Spare Batteries (Pack of 10) The Radiodetection S13 Sonde Spare Batteries are a pack of ten replacement batteries designed for use with compatible S13 sondes. They provide reliable power for maintaining consistent signal transmission during underground locating and inspection operations, ensuring continued performance in the field. Key Features • Pack of 10 replacement batteries for S13 Sonde • Provides reliable power for underground locating applications