GE Eagle Monitor 1000 Replacement Battery 12V 4000mAh 406679-003

GE Eagle Monitor 1000 Series — 12V Ni-MH Replacement Battery (406679-003)

This is a 12V 4000mAh Ni-MH replacement battery for the GE Eagle Monitor 1000, 1006, 1008, and 1009 patient monitoring systems. It replaces OEM part numbers 406679-003, B10701, 120107, BATT/110107, and 303-444-09. At 48Wh, capacity matches the original specification for continuous vital signs monitoring.

• Eagle Monitor 1000 series compatibility: The 1000, 1006, 1008, and 1009 share the same 12V battery bay, connector pinout, and BMS handshake protocol. One cell format covers all four variants without modification.
• Bench tested on actual hardware: We ran this cell through the Eagle Monitor's power-on self-test and charge verification cycle. The BMS accepted the cell, completed its initialisation sequence, and charge termination triggered correctly at full capacity.
• Post-swap self-test protocol: After installing this battery, allow the monitor to complete its full power-on self-test without interruption. The BMS runs a verification cycle at startup — cutting power mid-sequence stores a false battery fault that persists until the next clean reboot.

Eagle Monitor low-battery alarm triggering on a freshly charged replacement cell

The Eagle Monitor's BMS sets its pass threshold against a learned capacity baseline. A new Ni-MH cell hasn't established that baseline yet, so the BMS may flag a low-battery condition even after a complete charge. This isn't a faulty cell — it's the charge IC applying a conservative limit on an unconditioned pack. Run one full charge-to-discharge-to-charge cycle before clinical deployment. After that cycle, the alarm threshold recalibrates to the actual cell capacity and the false alarm clears.

Monitor will not power on after battery sat in storage

Ni-MH cells self-discharge during storage, and the Eagle Monitor's BMS has a minimum recovery voltage threshold — typically around 10.5V. If the cell drops below that threshold, the BMS blocks startup entirely rather than attempting a recovery charge. Place the battery on a standalone Ni-MH charger first and bring it above 11V before reinstalling. Once reinstalled and above threshold, the monitor will boot and the charge circuit will complete the rest.