For iRobot Braava 320,Braava 321 Mint 4200,Mint 4205( 7.2V 2600mAh NI-MH) 2-Pack 618952363182 | eBay
THISS Vac Battery for iRobot Braava 320 iRobot Braava 321 Mint 5200 Mint 5205 US | eBay
BRAAVA 320 Battery for iRobot Ni-MH 7.2V 2500mAh BRAAVA 320 321 Mint 4200 4205 | eBay
iRobot Braava 320 Battery for Cordless Vacuum
Amazon.com: HQRP 2200mAh Battery Works with iRobot Mint 4200, Mint 4205, Braava 320, Braava 321, 4408927 Automatic GPHC152M07 Ultra High Capacity [Robotic Vacuum Cleaner] : Home & Kitchen