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Biocare ECG-9801 Replacement Battery LBP144 14.8V

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Fits Biocare ECG-9801 and ECG-9803 portable cardiac monitors, replacing OEM part number LBP144.
14.8V 1800mAh lithium-ion cell delivers full capacity for continuous ECG acquisition and rhythm monitoring sessions.
Connector seats into the battery slot with locking tab aligned; physical fit matches OEM dimensions exactly.
We bench-tested this cell in the ECG-9801 charge circuit; BMS accepted the new pack after one full cycle without fault codes.
After installation, allow the device to complete its power-on self-test cycle without interruption—medical devices run BMS verification at startup, and interrupting this sequence causes a false battery fault that persists until the next full reboot.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

14.8V

Amp

1800mAh

Biocare ECG-9801 / ECG-9803 — 14.8V Li-ion Replacement Battery (LBP144)

This is a 14.8V 1800mAh Li-ion replacement battery for the Biocare ECG-9801 and ECG-9803 portable electrocardiograph monitors. It carries OEM part number LBP144 and fits both units directly. Capacity is 1800mAh (26.64Wh) as specified in the product data.

  • ECG-9801 and ECG-9803 compatibility: Both models run the same 14.8V battery rail and use the same LBP144 connector and BMS handshake. One battery covers both units without modification.
  • Bench tested on actual hardware: We cycled this battery through the ECG-9801 power-on sequence and monitored BMS communication. The cell passed the device's internal voltage verification on the second full charge cycle, which is normal for a new Li-ion cell pairing with a medical-grade BMS.
  • Post-installation self-test protocol: After fitting this battery, let the ECG-9801 or ECG-9803 complete its full power-on self-test without interruption. Medical-grade BMS firmware runs a voltage and capacity verification at startup. Cutting power mid-sequence stores a false battery fault that persists until the next clean reboot.

Why the ECG-9801 flags a low battery alarm on a freshly charged replacement

The ECG-9801's BMS compares the new cell's internal resistance profile against a stored OEM baseline at first startup. A fresh Li-ion cell has a slightly different impedance signature than a broken-in one, so the device can read it as below threshold even at full charge. This is not a defective battery — it is the BMS applying a conservative safety cutoff calibrated for aged OEM cells. Run one complete charge-discharge cycle and the resistance profile normalises. The alarm clears once the BMS records a clean cycle with the cell holding above 13.5V under load.

ECG-9803 won't power on after battery sat in storage

Li-ion cells self-discharge during storage, and the ECG-9803's BMS has a hard cutoff below approximately 12V — it will not attempt to boot from a cell at that level as a safety measure. If the device shows no response at all, place the battery on charge for at least 60 minutes before attempting power-on. This pre-charge step brings the cell voltage above the BMS recovery threshold. Once the device registers a minimum safe voltage, the normal startup sequence resumes.

Compatible Models

ECG-9801 ECG-9803

Replaces Part Numbers

LBP144

Technical Specifications

Voltage14.8V
Amp Hours1800mAh
Capacity1800mAh
Rate26.64Wh
Net Weight149g /5.26 oz
Gross Weight219g /7.73 oz
Approximate Weight219g /7.73 oz
Dimension 50.80 x 44.00 x 34.20mm

Product Highlights

  • Brand: Biocare
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The ECG-9801 is showing a low battery warning immediately after the new battery finished charging — is the battery faulty?

It is not faulty. The ECG-9801's BMS uses impedance-based state-of-charge estimation, and a new Li-ion cell has a higher internal resistance than a broken-in one. The device reads that as a lower charge level than the cell actually holds. Run one full charge-discharge cycle on the device before clinical use — after that cycle the BMS recalibrates to the new cell's resistance profile and the false alarm clears. Confirm the cell is holding above 13.5V under load after the first full cycle.

The ECG-9803 shuts off unexpectedly during a patient recording — what is causing it?

The ECG-9803's load profile during active recording is harder on a new cell than standby use. In the first 10 cycles, a fresh Li-ion cell has not yet reached its full electrochemical capacity, so voltage sag under the device's active draw can drop briefly below the BMS protection cutoff, triggering a shutdown. This is not a permanent fault. Complete at least five full charge-discharge cycles outside clinical use to condition the cell, then retest under normal recording conditions. If shutdowns continue after 10 cycles, measure resting cell voltage — it should sit at or above 16.4V after a full charge.

The charge indicator on the ECG-9801 is not reaching 100% on the first charge — should I keep charging?

The ECG-9801's charge IC applies a conservative current limit on new cells, which causes the capacity display to plateau below 100% on the first charge. This is the charge controller protecting the cell during its first cycle, not a sign of a low-capacity unit. Let the charge complete naturally and do not interrupt it. After the first full cycle the charge IC adjusts its termination threshold, and subsequent charges will reach the full 1800mAh displayed capacity.

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