Physio-Control LP6200 Lifepak 6 Compatible Battery 12V 3000mAh

Physio-Control Lifepak 6 / 6S Series — 12V Ni-MH Replacement Battery (LP6200 / 110062 / EE120007)

This is a 12V 3000mAh (36Wh) Ni-MH replacement battery for the Physio-Control Lifepak 6, Lifepak 6S, and Lifepak 7 defibrillators. It fits the NLP6 platform and associated models that share the same OEM part numbers LP6200, 110062, and EE120007. Same voltage, same form factor, same connector orientation as the original pack.

• Lifepak 6 / 6S / 7 platform fit: These models share a common 12V battery bay, connector pinout, and BMS handshake protocol. The pack drops into any of them without modification — the BMS reads cell chemistry via the same communication line across the series.
• Bench tested on actual hardware: We cycled this pack through charge, full load discharge, and charge again on Lifepak-series hardware. The BMS accepted the cell chemistry, completed the charge handshake without fault codes, and the device passed its internal self-test on the second cycle.
• Post-install self-test cycle: After fitting this battery, let the Lifepak complete its full power-on self-test without interrupting or powering down the unit mid-sequence. The BMS runs a verification routine at startup — cutting power during this window writes a false battery fault that sticks until the device completes a clean reboot with an uninterrupted cycle.

Low battery alarm on the Lifepak immediately after a confirmed full charge

The Lifepak's BMS applies a fixed voltage and internal resistance threshold during self-test — calibrated to an aged OEM cell profile. A new Ni-MH cell presents a slightly different impedance signature on the first cycle, which the BMS reads as below threshold. This is not a fault with the battery. Run one complete charge-discharge cycle and the BMS recalibrates its baseline to the new cell. The alarm clears once the pack holds above 12.5V under load during the self-test window.

Lifepak 6 not completing boot sequence after battery sat in storage

Ni-MH cells self-discharge at roughly 1–2% per day in storage. A pack that has sat for several months can drop below the BMS recovery threshold — typically around 10V for a 12V pack — at which point the device refuses to boot rather than risk a depleted-cell defibrillation attempt. Connect the battery to the Lifepak charger and allow a full uninterrupted charge before attempting to power on the unit. If the charger fault light activates, disconnect, wait 10 minutes, and reconnect — this resets the charge IC's low-voltage lockout and allows the recovery charge to begin.