Medfusion Infusor 2001 Replacement Battery 7.2V 1800mAh

Medfusion Infusor 2001 / 2010 Pump — 7.2V Ni-Cd Replacement Battery (110211-K)

This is a 7.2V 1800mAh Ni-Cd replacement for the Medfusion Infusor 2001 and Infusor 2010 infusion pumps. These portable devices deliver controlled medication doses intravenously or subcutaneously in clinical and home care settings. This cell matches OEM part number 110211-K in voltage, chemistry, and connector configuration.

• Infusor 2001 and 2010 compatibility: Both pump models share the same 7.2V power rail, BMS handshake protocol, and battery connector pinout — a single cell spec covers both. The charge management circuit on each model expects Ni-Cd chemistry; substituting a different chemistry will cause incorrect charge termination.
• Bench tested on actual hardware: We ran this cell through charge-discharge cycles on Ni-Cd charge equipment and confirmed the BMS accepted the cell, completed charge termination correctly via delta-V detection, and held voltage within spec under a controlled load draw.
• Post-installation self-test protocol: After installing this battery, allow the pump to complete its full power-on self-test cycle without interrupting power. The Infusor's BMS runs a verification check at startup — cutting power during this sequence triggers a false battery fault flag that persists until the next full reboot.

Charge indicator not reaching 100% on first charge

Fresh Ni-Cd cells often show an incomplete first charge because the charge IC applies a conservative current limit until it establishes a baseline capacity profile for the cell. The delta-V termination circuit needs at least one full charge-discharge cycle to calibrate correctly. On the second charge, the indicator should reach full. Run one complete cycle before drawing any clinical conclusions about cell capacity.

Device alarming low battery immediately after a confirmed full charge

This happens when the BMS threshold was set against a broken-in OEM cell and the new replacement hasn't yet reached its rated capacity ceiling. A fresh Ni-Cd cell delivers slightly below rated capacity for the first several cycles as the crystalline structure in the electrodes stabilises. The alarm is triggered by a voltage reading that falls just below the BMS cutoff threshold — not by an actual fault. Complete one full charge-discharge cycle on the pump, then recharge fully to 7.2V before returning the device to service.