Odec 14.4V iRobot Roomba Rechargeable Batteries for Roomba Vacuum R3 500 600 700 Series, 5800mAh Li-Ion iRobot Vacuum Battery Pack Battery Capacity: 5800mAh; Battery Voltage: 14.4V; Battery Type: Li-ion 14.4V iRobot Roomba rechargeable batteries for roomba vacuum R3 500 600 700 series Over-charge and over-discharge protection, lengthen the service life of the battery No memory effect, you can charge the battery anytime 30 days money back and satisfactory customer service within 24 hours