Radiodetection 3-Cell Alkaline Battery Tray The Radiodetection 3-Cell Alkaline Battery Tray is designed to hold three D Cell (LR20) batteries for use with compatible Radiodetection equipment. It provides a reliable power solution for field operations where replaceable alkaline battery supply is required. Key Features • Holds 3 x D Cell (LR20) alkaline batteries • Provides replacement power solution for compatible devices • Simple drop-in battery tray design