Mindray BeneHeart D3 Replacement Battery 14.8V 6800mAh

Mindray BeneHeart D1 / D2 / D3 — 14.8V Li-ion Replacement Battery (LI24I001A)

This 14.8V, 6800mAh lithium-ion battery replaces the OEM pack in the Mindray BeneHeart D1, D2, and D3 defibrillators. It matches the original voltage rail, connector, and BMS communication protocol required by the device. Capacity is 6800mAh (100.64Wh) — identical to the OEM specification.

• BeneHeart D1 / D2 / D3 platform: All three models share the same battery bay geometry, 14.8V nominal rail, and BMS handshake protocol. A single cell design covers the full D-series lineup. Cross-compatible OEM part numbers include 022-000034-00, 022-000047-00, 022-000124-00, LI24I005A, and LI24005A.
• Bench tested on actual hardware: We cycled this cell through charge, standby, and simulated load draw on the BeneHeart platform. The BMS completed handshake without fault flags, and the charge IC accepted the cell without triggering a foreign-battery rejection error.
• Post-install self-test protocol: After fitting this battery, allow the BeneHeart to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power during this window logs a battery fault that persists until the next clean boot cycle.

BeneHeart D3 low-battery alarm immediately after a confirmed full charge

The BeneHeart D3 evaluates battery state against thresholds calibrated to the OEM cell's charge curve. A new replacement cell with a slightly different initial charge profile can trigger this alarm even when the pack is fully charged. The BMS needs one complete charge-discharge cycle to map the new cell's curve and update its state-of-charge model. Run one supervised full cycle — charge to 100%, allow the device to draw the pack down through normal operation, then recharge fully — before returning the unit to clinical readiness.

Device will not power on after the replacement cell sat in storage

Li-ion cells self-discharge during storage, and the BeneHeart's BMS includes a low-voltage lockout that prevents boot if cell voltage drops below approximately 12V. A cell shipped or stored for several months can fall under this threshold before the first charge attempt. Connect the device to mains power and leave it on charge for a minimum of four hours before attempting to power on — this allows the charge IC to recover the cell incrementally past the BMS recovery floor. If the device still will not boot, check that wall power is confirmed live and the charge indicator LED is active before drawing further conclusions.