Becker Bodenstation LiFePO4 Akku-Halter Replacement of the PB battery with a LiFePO4 battery for the portable VHF station GK615-XX. BOM LiFePO4 Accu M3*4-4.2 female brass insert 3 pcs M3 x 5 mm Rounded Head Screw 1 pc AMP Flachsteckzunge 4.8 mm 2 pcs PLA Filament Print with PLA infill 20%