battery_king Replace 18V 18 volt Tools Battery For HITACHI Drill BSL 1815X *L... Battery Type: Lithium-ion (Li-ion)  Color: Black Voltage: 18.00V  Capacity: 1500mAh No. of cell: 5  Weight: 431.40 g Compatible Battery Part Numbers: 330139, 330557, BSL 1815X Condition: New, 1 year warranty! Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension of your device.