COMEN C60 Patient Monitor Replacement Battery 14.8V 3100mAh

COMEN C60 Patient Monitor — 14.8V Li-ion Replacement Battery (022-000074-01)

This is a 14.8V, 3100mAh Li-ion replacement battery for the COMEN C60 patient monitor. It fits the C60 directly, using OEM part number 022-000074-01. The C60 runs continuous vital signs monitoring — ECG, SpO2, NIBP, and temperature — and depends on a functioning battery to maintain portable operation during transport or power interruption.

• COMEN C60 compatibility: The C60 uses a 14.8V four-cell Li-ion pack with a BMS that handshakes with the monitor's charge IC. This replacement matches that voltage rail and connector pinout. The monitor's battery management reads cell state directly, so the pack must meet the BMS communication requirements — not just voltage.
• Bench tested on actual hardware: We ran this pack through the C60's charge cycle and confirmed the BMS negotiated correctly with the monitor's charge controller. Cell balancing activated as expected across all four cells, and the monitor reported battery status without fault flags.
• Post-installation self-test protocol: After fitting this battery, allow the C60 to complete its full power-on self-test without interruption. The monitor runs a BMS verification sequence at startup. Cutting power during this sequence logs a false battery fault that persists until the next clean reboot — not a hardware failure, but it will trigger repeated low-battery alarms in clinical use.

Why the C60 alarms low battery immediately after a confirmed full charge

The C60's BMS applies a learned threshold calibrated to the chemistry profile of the original cell. A new replacement cell hasn't completed a full charge-discharge cycle, so the BMS treats its state-of-charge curve as unverified and flags it conservatively. This isn't a fault with the battery — it's the monitor applying its minimum-confidence threshold before the cell data is established. Run one complete charge from flat to full without interruption, and the BMS updates its reference curve. After that cycle, the alarm clears and the monitor reads charge level accurately.

C60 won't power on after the replacement battery sat in storage

Li-ion cells self-discharge during storage. If the pack voltage drops below approximately 12.0V — roughly 3.0V per cell — the C60's BMS enters a protection state and blocks startup entirely to prevent cell damage. The monitor will show no response, not even the boot screen. Connect the C60 to mains power first and leave it on charge for at least two hours before attempting to power on from battery. This allows the charge IC to bring the cells back above the BMS recovery threshold before the monitor requests a battery status handshake.