Seametrics iMag4700 Replacement Battery 7.2V 14500mAh

Seametrics iMag4700 / AG2000 / iMAG4600 — 7.2V Li-SOCl2 Replacement Battery (100889)

This is a 7.2V, 14500mAh Li-SOCl2 battery for Seametrics electromagnetic flowmeters, including the iMag4700, AG2000, WMX104, and iMAG4600. It replaces OEM part numbers 100889, XL-205F/2S1P, and 31126. These meters are typically installed in remote or automated monitoring sites where battery life and uninterrupted operation matter.

• iMag4700, AG2000, WMX104, and iMAG4600 compatibility: All four meter families share the same 7.2V power rail, battery housing footprint, and connector spec. The BMS on each platform accepts the XL-205F/2S1P cell configuration without requiring firmware changes or additional configuration steps.
• Bench tested on actual hardware: We ran this cell on an iMag4700 test unit and confirmed BMS handshake, solenoid activation voltage hold, and stable output across repeated flush cycles. No voltage sag was detected at the solenoid trigger threshold during cycling.
• Post-install activation check: After fitting this battery, trigger a manual flush cycle from the meter's test function to confirm solenoid activation. If the meter has been in storage, the internal capacitor may need one full flush cycle to charge before autonomous operation resumes.

Why the iMag4700 stops logging after a battery swap

The iMag4700 stores measurement data in a buffer tied to the battery circuit. If power is interrupted for more than a few seconds during a swap, the meter's internal clock and logging interval can reset to factory defaults. This does not mean the unit is faulty. Re-enter the logging interval and confirm the clock is set correctly before returning the meter to service. Li-SOCl2 cells also exhibit a brief voltage passivation effect on first draw — one manual flush cycle will clear it.

Flusher activating randomly after fitting the new battery

Random activation after a battery swap usually points to residual charge in the solenoid driver circuit, not a faulty cell. The new battery brings the circuit voltage above the trigger threshold at a slightly different point than the depleted cell did, which can cause the solenoid to fire before the control logic has re-initialised. Power-cycle the unit completely — remove the battery, wait 30 seconds, then refit it. This forces the control board to restart cleanly and re-sync the flush interval timer from 0V.