Amazon.com: Miady 2200mAh Roomba i7 Battery Replacement Compatible with iRobot Roomba i7 e5 e6 i3 i4 7150 7550 4624864 e5 e5152 e5154 ABL-D1 e and i Series, Lithium Ion Battery Extended Life :
iRobot Roomba® i7+ (7550) Wi-Fi® Connected Self-Emptying Robot Vacuum, Smart Mapping, Works with Google Home, Ideal for Pet Hair, Carpets, Hard Floors - Walmart.com