Titan-2 Pack Lithium Li-ion 18V Drill Replacement Battery for Ryobi BPL-1815, BPL-1820G 18Volt 3Ah Titan Brand replacement battery for Ryobi 2 Year Warranty 18V**3.0AH**Li-Ion Replace RYOBI original battery: P104, P103, RYOBI BPL-1815 BPL-1820G BPL18151 BPL1820 High Quality Cells, Plastics