Amazon.com: 14.4V 3200mAh i7 Battery Replacement for iRobot Roomba e and i Series, Large Capacity Battery Compatible with Roomba i7 i7+ i8 i6 i4 i4+ i3 i3+ i7158 J7 7150 7550 and
Amazon.com - Fuyoda Replacement Parts for Roomba,10 Pack Edge-Sweeping Side Brushes fit for irobot Roomba e & i Series i7 i7+ i3 i4 i6 i6+ i8 i8+Plus E5 E6 E7 Vacuum