The SPARKOLE Lithium Ion 14.4V 5200mAh 74.88Wh Battery is the perfect addition to your Roomba 900, 800, 700, 600 series. This high-quality, fully decoded battery is long-lasting and made from durable plastic to ensure a lasting battery life. The package includes one 5.2Ah battery and is compatible with both iRobot Roomba 900, 800, 700, 600 series models.