TECHTEK Battery 2600mAh compatible with [Fuji] FSC, FSC-3 Ultrasonic Flow Meter, FSC3, FSC4, FSCS10A2-00Y, FSCS10A3-00Y, FSCS10A4-00Y, Portaflow-C FSC-3 Ultrasonic Flow Meter, Portaflow-C FSC-4 repla