Barium titanate (BaTiO 3 ) containing polypropylene (PP) composite filaments were melt spun to modify polymer electrostatic charging characteristics. Sample filaments were charged with a corona instrument and their surface potentials were measured. Initial surface potential as well as potential stability was monitored through an accelerated decay procedure. It was found that both BaTiO 3 concentration and charging temperature influence the charging characteristics of the fibers. When BaTiO 3 /PP composite filaments were charged at 130 °C, significant enhancements were observed when compared to samples charged at room temperature. The distribution of BaTiO 3 particles within the filaments and changes in the crystal structure were also examined.