Becker Bodenstation LiFePO4 Akku-Halter Replacement of the PB accu with a LiFePO4 accu for the portable VHF stations GK615-XX. BOM LiFePO4 Accu M3*4-4.2 female brass insert 2 pcs AMP Flachsteckzunge 4.8 mm 2 pcs PLA Filament Print with PLA infill 25%