About this replacement
MGVG Doring Combimat 2000 — 9.6V Ni-MH Replacement Battery (110052)
This is a 9.6V, 1000mAh Ni-MH replacement battery for the Doring Combimat 2000 medical device. It replaces OEM part numbers 110052 and 110278. The battery fits the Combimat 2000 platform and restores full on-device power capacity when the original cell has degraded.
- Combimat 2000 platform fit: The Combimat 2000 uses a dedicated battery bay with a specific connector and voltage rail at 9.6V. The BMS handshake on this platform checks both voltage and chemistry type at power-on. This cell matches both parameters, so the device recognises it without triggering a battery fault on startup.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Combimat 2000-class load profile. The BMS completed its verification handshake, accepted the cell state, and cleared the startup self-test on the first full charge cycle.
- Startup cycle care: After installing this battery, let the device complete its full power-on self-test without interruption. The Combimat 2000 runs a BMS verification sequence at boot — cutting power mid-sequence logs a false battery fault that will persist until the next clean full reboot.
Device not completing boot sequence after battery swap
The Combimat 2000 runs a BMS learn cycle during its first boot on a new cell. If the battery voltage sits just below the device's minimum acceptance threshold — common after storage — the boot sequence stalls before completion. This is not a faulty cell. Charge the battery fully before the first installation, then allow the device a clean uninterrupted boot. One full charge-discharge cycle is enough for the BMS to accept the new cell's capacity curve.
Low battery alarm triggering immediately after a confirmed full charge
This happens because the Combimat 2000's BMS compares the new cell's discharge curve against a stored OEM reference. A fresh Ni-MH cell has not yet established its full cycle profile, so the first discharge reads lower than expected and trips the alarm threshold early. It is not a capacity defect. Run one complete charge-discharge cycle outside clinical use — by cycle two, the BMS reference and the cell's actual output align and the alarm clears.