Hannets High quality battery compatible with iRobot Braava 390 I battery battery pack robot vacuum cleaner replacement part I Braava 390T accessories 2500 mAh battery wiper robot replacement battery 7.24 V :
iRobot Braava 390t Battery Replacement - YouTube
Tectra 7.2V 3000mAh Ni-MH Rechargeable Battery for iRobot Braava 380 380T 390 390T Mint 5200B 5200C Vacuum Cleaner : Amazon.com.au: Home