Replacement of Li-Ion battery for Roborock Robot Vacuum Cleaner and Mop. Model: 4INR19/66 Nominal Voltage: 14.4 V Limited Charging Voltage: 16.8 V Capacity: 3200 mAh / 46.08 Wh Connector/Cable: 3 pin (red/black/yellow) Compatible models: Q7 TF, Q7 TF, Plus, Q7 PF, Q7 PF Plus, Q7 M5, Q7 M5 Plus, Q7 L5