About this replacement
COMEN ND10 Monitor Series — 10.8V Li-ion Replacement Battery (CMLI1X3N004A)
This is a 10.8V, 2500mAh Li-ion battery built to the CMLI1X3N004A specification. It fits the COMEN ND10, ND10A, ND10C, and ND10S patient monitors, along with additional variants in the ND10 series. These monitors run continuous vital signs surveillance — heart rate, SpO2, NIBP, and temperature — so consistent, uninterrupted power is critical.
- ND10 series platform compatibility: All ND10 variants share the same voltage rail, physical connector, and BMS handshake protocol, which is why a single cell chemistry at 10.8V covers the full model range without firmware or hardware modification.
- Bench tested on actual hardware: We ran this battery through the ND10's power-on self-test sequence and confirmed the BMS communicates state-of-charge correctly to the monitor's charge IC. The cell passed capacity verification within the device's accepted threshold window.
- Post-installation self-test protocol: After fitting this battery, allow the ND10 to complete its full power-on self-test without interruption. The monitor's BMS verification routine runs at startup — cutting power during this sequence triggers a persistent battery fault flag that won't clear until the next clean reboot.
Why the ND10 shows a battery fault after a confirmed full charge
The ND10 monitor uses a BMS threshold calibrated to the original cell's chemistry profile. A fresh replacement cell hasn't yet built a charge history for the device to reference, so the monitor's charge IC applies a conservative acceptance window on the first cycle. This can flag an alert even when the cell is genuinely full. One complete charge-to-discharge-to-charge cycle lets the BMS establish a baseline and clears the mismatch. Do not place the device in clinical rotation until this cycle is complete.
ND10 not completing boot sequence on new battery after storage
Li-ion cells self-discharge during storage. If the cell voltage drops below approximately 9.0V, the ND10's BMS will refuse to initiate a boot sequence — the device appears dead even when connected to a charger. In this state, leave the battery connected to the dock or charger for at least 60 minutes before attempting to power on. The charge IC needs to bring the cell above the BMS recovery threshold before it will pass control to the monitor's startup sequence. If the device still won't boot after that window, check that charger output voltage is stable at the rated level before assuming a faulty cell.