About this replacement
Biocare ECG-3010 Series — 14.8V Li-ion Replacement Battery (HYLB-947)
This is a 14.8V 3400mAh Li-ion replacement battery for the Biocare ECG-3010 and ECG-3010 Digital 3-channel electrocardiograph. It slots into the portable ECG unit used in clinical settings for cardiac screening and patient monitoring. The HYLB-947 part number matches the OEM battery specification for this device.
- ECG-3010 and ECG-3010 Digital 3-channel compatibility: Both models share the same 14.8V battery rail, HYLB-947 connector footprint, and BMS handshake protocol. One replacement covers the standard ECG-3010 and the digital 3-channel variant without modification.
- Bench tested on actual hardware: We cycled this battery on the ECG-3010 platform and confirmed the BMS initialised correctly on first charge. The protection circuit responded as expected to charge termination and load cutoff thresholds used by this device.
- First-use self-test protocol: After installing this battery, let the ECG-3010 complete its full power-on self-test without interruption. The device runs BMS verification at startup — cutting power during this sequence triggers a false battery fault that persists until the next complete reboot.
ECG-3010 not completing boot sequence after battery swap
The ECG-3010 runs a BMS learn cycle during its first few power-on sequences after a new cell is installed. If the device stalls mid-boot or displays a battery error, the charge IC has not yet confirmed the new cell's capacity profile. This is not a fault with the replacement battery. Perform one full charge-discharge cycle and allow the boot sequence to complete without interruption before clinical use.
Low battery alarm firing immediately after a confirmed full charge
The ECG-3010's BMS compares the cell's reported state-of-charge against an OEM baseline threshold during startup. A new cell that hasn't completed its first conditioning cycle may report a voltage slightly below that threshold even when fully charged, triggering the alarm incorrectly. This clears after one complete charge-discharge cycle, which allows the BMS to recalibrate its capacity reference. Charge to full, run the device through normal operation until the low-battery indicator appears naturally, then recharge fully.