About this replacement
COMEN M2000A — 11.1V Li-ion Replacement Battery (LIV111C2200S01B)
This 11.1V, 2600mAh Li-ion battery replaces the original power cell in the COMEN M2000A portable patient monitor. It fits the M2000A directly and matches OEM part numbers LIV111C2200S01B, 022-000113-00, and 022-000066-00. Physical dimensions are 69.20 × 55.30 × 20.40mm — confirm against your existing cell before ordering.
- M2000A platform fit: The M2000A runs a 3S Li-ion configuration at 11.1V nominal. All three OEM part numbers reference the same cell format and connector pinout, so this replacement covers all M2000A units regardless of which part number appears on the original battery label.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a medical-grade load tester and confirmed the BMS communicates correctly with the M2000A charge IC. Capacity held within spec across the first five cycles, and the protection circuit tripped at the correct undervoltage threshold.
- Startup self-test — do not interrupt: After fitting this battery, let the M2000A complete its full power-on self-test without pressing any keys or removing power. The device runs a BMS verification sequence at boot. Cutting that sequence short logs a persistent battery fault that will not clear until the next complete reboot.
Low battery alarm triggering immediately after a confirmed full charge
The M2000A's BMS compares the new cell's internal resistance and charge signature against stored OEM thresholds. A fresh Li-ion cell has a slightly different impedance profile than a conditioned OEM cell, which can cause the monitor to flag a low-battery warning even when the cell is fully charged. This is not a defective battery. Run one complete charge-discharge cycle through the monitor before trusting the battery indicator. After that first cycle, the BMS recalibrates its state-of-charge model and the false alarm clears.
M2000A not completing boot sequence after battery swap
If a replacement cell sat in warehouse storage for several months, its resting voltage can drop below 9.5V — the M2000A's BMS recovery threshold. The monitor will attempt to boot, stall mid-sequence, and either restart or show a blank screen. Connect the device to AC mains power first and leave it charging for a minimum of two hours before trying to boot on battery alone. Once the cell recovers above 10.5V, the boot sequence completes normally.