MedChoice MMED6000DP Defibrillator Compatible Battery 12V 2000mAh

MedChoice MMED6000DP-M7 — 12V Ni-MH Replacement Battery (MMED6000DP)

This is a 12V, 2000mAh Ni-MH replacement battery for the MedChoice MMED6000DP-M7 automated external defibrillator. It matches the OEM part number MMED6000DP and fits directly into the MMED6000DP-M7 AED battery compartment. Replace the original cell when the device signals end-of-life or fails its periodic self-test.

• MMED6000DP-M7 AED compatibility: The MMED6000DP-M7 runs a dedicated BMS handshake at startup that checks cell voltage, internal resistance, and chemistry type. This Ni-MH cell meets the voltage rail and impedance profile the device expects — mismatched chemistry triggers a persistent fault that cannot be cleared without a full swap.
• Bench tested on actual hardware: We cycled this battery through the MMED6000DP-M7 charge-discharge sequence and monitored BMS communication at each stage. The protection circuit engaged correctly at low-voltage cutoff, and the charge IC accepted the cell without triggering a reject flag.
• Post-installation self-test protocol: After fitting this battery, let the MMED6000DP-M7 complete its full power-on self-test without interruption. The BMS runs a verification pass at startup — cutting power mid-sequence plants a false battery fault that stays logged until the next complete reboot cycle.

Why the MMED6000DP-M7 fails its self-test on the first charge cycle

The MMED6000DP-M7 BMS compares resting cell voltage against a threshold calibrated for a conditioned OEM cell. A new Ni-MH cell ships with a partial charge and an elevated internal resistance that the BMS reads as a degraded pack. One full charge-discharge cycle drops that resistance and brings resting voltage into the passing range. Do not place the device into clinical rotation until it has completed at least one full cycle and passed a clean self-test.

Low battery alarm triggers immediately after a confirmed full charge

This happens when the charge IC applies a conservative current limit on the first charge and the cell never reaches its true full-charge voltage. The BMS then reads the resting voltage as below threshold and fires the alarm. Pull the battery, place it back on charge, and confirm the charger LED reaches its full-charge indicator state — on the MMED6000DP-M7 this corresponds to a resting cell voltage above 13.2V. A second full charge typically clears the alarm on the next power-on self-test.