About this replacement
Biocare ECG-6010 / ECG-6020 / iE6 — 14.8V Li-ion Replacement Battery (HYLB-722)
This 14.8V 3400mAh (50.32Wh) Li-ion battery replaces OEM part HYLB-722 in the Biocare ECG-6010, ECG-6020, and iE6 portable electrocardiographs. It powers the device during cardiac monitoring sessions when the original cell has lost capacity or failed to hold charge. Voltage, connector, and BMS communication match the OEM specification for these three models.
- ECG-6010, ECG-6020, and iE6 compatibility: All three models share the same 14.8V battery bay, connector pinout, and BMS handshake protocol — that is why one cell number covers the entire platform. Swapping between models requires no adapter or firmware change.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on the ECG-6010 platform and confirmed the BMS accepted the new cell, reported state-of-charge correctly, and did not trigger a fault flag at any point during the cycle.
- Power-on self-test after installation: After fitting the battery, let the ECG device complete its full startup self-test without interruption. The BMS runs a verification sweep at boot — cutting power mid-sequence registers a false battery fault that persists until the next clean reboot from full charge.
Charge indicator stalling below 100% on the first charge cycle
The ECG-6010 charge IC applies a conservative current ceiling when it encounters a new or unfamiliar cell. On the first charge, the IC may hold the indicator at 95–98% for an extended period rather than completing to full. This is the charge controller limiting input until the cell's internal resistance profile has been logged. Run one complete charge from flat to full without removing the battery mid-cycle, and the indicator will reach 100% on the second charge. Do not use the device clinically until that first full cycle is complete.
Device alarming low battery immediately after a confirmed full charge
The Biocare BMS stores a learned capacity baseline from the previous cell. When a new cell is installed, the BMS compares the new cell's charge curve against that stored baseline — if they differ enough, the BMS flags a low-battery condition even at full state of charge. This is not a fault with the replacement cell; it is the BMS running its OEM-chemistry validation threshold. Run one full charge-discharge cycle so the BMS can log the new cell's profile, and the alarm clears. After that cycle, resting voltage should read between 16.6V and 16.8V at full charge.