Roomba 900 Series Original Battery (Lithium 3300mAh)
DC 14.4V 1800mAh 26Wh 1800LI Replacement Parts for iRobot Roomba 1800 Lithium Ion Battery- Compatible with Roomba 960/895/890/860/695/680/690/675/640/614 - Walmart.com
Nastima 14.8v 5000mah Li-ion Battery For Irobot Roomba 960/895/890/860/695/680/690/675/640/614 Replace Original 1800mah Battery - Rechargeable Batteries - AliExpress