Rechargeable 14.4V 3000mAh NiMH High Power Battery for Irobot Roomba 400 405 410 415 416 - China Original Replacement Battery and Sweeper Robot Battery
XLife battery for iRobot Roomba series 600, 700, 800 (Original)
Synergy Digital Vacuum Cleaner Battery, Works with iRobot Roomba 405 Vacuum Cleaner, (Ni-MH, 14.4V, 3000 mAh) Ultra High Capacity Battery - Walmart.com