SQU-1406 Battery for ThundeRobot 911M 911GT 911-E1 911-S1 911-T1 911-T2 78.88WH - Color: Black, Type: Li-ion, Voltage:  7.6V, Capacity: 30Wh, Warranty: 12 months, Compatible Model Numbers For ThundeRobot  911-E1B, 911-T2, 911-T1a, Compatible Part Numbers: