{"product_id":"biocare-ecg-9801-replacement-battery-148v-1800mah-li-ion","title":"Biocare ECG-9801 Replacement Battery LBP144 14.8V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBiocare ECG-9801 \/ ECG-9803 — 14.8V Li-ion Replacement Battery (LBP144)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 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.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eECG-9801 and ECG-9803 compatibility:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the ECG-9801 flags a low battery alarm on a freshly charged replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 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.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eECG-9803 won't power on after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-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.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381505720410,"sku":"BWCS-ECG980MD-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381505753178,"sku":"BWCS-ECG980MD-2","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381505785946,"sku":"BWCS-ECG980MD-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ECG980MD-1.webp?v=1778901305","url":"https:\/\/batteryweb.com\/products\/biocare-ecg-9801-replacement-battery-148v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}