China Rechargeable 14.4V 5200mAh High Power Lithium Battery for Irobot Roomba 400 500 600 - China Irobot Roomba Battery and Irobot Roomba Vacuum Cleaner price
14.4V Vacuum Battery Replacement for Roomba 400 Battery - Walmart.com
NiMH Rechargeable Battery: 14.4V 4.2Ah (MH-SC4200) for iRobot Roomba 4905 400 series Vacuum Cleaner