Amazon.com: Miady 2600mAh Roomba i7 Battery Replacement Compatible with iRobot Roomba i7 e5 e6 i3 i4 7150 7550 4624864 e5 e5152 e5154 ABL-D1 e and i Series, Lithium Ion Battery Extended Life :
Roomba Comparison: 614 vs 675 vs 690 vs E5 vs 960 vs 980 vs I3 vs I4 vs I6 vs I7 vs S9 vs J7
Battery for iRobot Roomba 14.4V i7 e6 7550 e5 e5152 e5154 ABL-D1 e and i Series | eBay
Vacuum Cleaner Battery for iRobot Roomba e Series e5 e6 and i Series i7 i7+ i8,7150 7550 5150 e5150 e515020 e5152 e5154 e5158|Rechargeable Batteries| - AliExpress