Medela Pump Clario 12V Replacement Battery 600.0806

Medela Clario — 12V Ni-MH Replacement Battery (600.0806)

This is a 12V, 2000mAh Ni-MH replacement battery for the Medela Pump in Style Clario electric breast pump. It also fits the Clario Home Care Suction Pump, Aspirateur Clario, and related Clario-platform devices. The OEM part numbers covered are 600.0806, OM11417, B11417, and 110341.

• Clario platform compatibility: All models in the Clario line share the same 12V power rail, connector pinout, and BMS handshake protocol — whether the unit is configured for home-use milk expression or clinical suction. One battery cell fits across the platform.
• Bench tested on actual hardware: We ran this cell through the Clario's charge IC and confirmed the BMS accepted the new Ni-MH chemistry without fault flags. The protection circuit held voltage within spec across the full charge and first discharge cycle.
• Post-installation self-test requirement: After fitting this battery, let the pump complete its full power-on self-test cycle without interrupting it. The Clario's BMS runs a chemistry verification check at startup — cutting power mid-sequence locks in a false battery fault that won't clear until the next complete reboot.

Why the Clario shows a low-battery alarm immediately after a confirmed full charge

The Clario's charge IC uses a threshold calibrated to the internal resistance profile of a cycled OEM cell. A brand-new Ni-MH cell has lower internal resistance and a slightly different voltage curve on its first few cycles, which the BMS misreads as an undercharged or degraded pack. This triggers the low-battery alarm even when the cell is at full capacity. Run one complete charge-to-discharge-to-charge cycle before trusting the indicator. After that first cycle the BMS recalibrates and the alarm clears. Charge terminates at approximately 14.4V for a 12V Ni-MH pack at the standard -ΔV cutoff.

Pump powers off unexpectedly mid-session in first 10 uses

New Ni-MH cells have not yet reached full charge-acceptance capacity and carry higher internal resistance in early cycles. The Clario's motor draws sharp current spikes during suction cycles — enough to push voltage momentarily below the BMS cutoff threshold on an unconditioned cell. The protection circuit reads this sag as a fault and shuts the pump down. This resolves after 8–10 full charge-discharge cycles as the cell's internal resistance drops to its rated level. If cutoffs persist beyond 10 cycles, measure resting voltage after a full charge — it should read no lower than 13.8V.