{"product_id":"comen-nc3-replacement-battery-111v-3400mah-li-ion","title":"COMEN NC3 Patient Monitor Replacement Battery 11.1V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCOMEN NC3 \/ ECG CM300 — 11.1V Li-ion Replacement Battery (022-000066-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 3400mAh Li-ion battery for the COMEN NC3 multiparameter patient monitor and ECG CM300. OEM part number 022-000066-00. It fits units used in hospitals, clinics, and emergency transport where continuous vital signs monitoring is required.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNC3 and CM300 platform compatibility:\u003c\/strong\u003e\n    Both the NC3 and ECG CM300 share the same battery bay geometry, connector pinout, and BMS handshake protocol. A single cell chemistry and voltage rail services 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 cell through a full charge and load discharge on the NC3 platform. The BMS completed its verification pass, cleared all battery fault flags, and accepted the cell without intervention.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the NC3 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power mid-sequence triggers a persistent false battery fault that clears only on a complete reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNC3 not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe NC3 runs a BMS learn cycle during its first few power-on sequences after a new cell is installed. If the device stalls at the boot screen or displays a battery fault, the BMS has not yet profiled the new cell's charge curve. This is not a faulty battery. Run one complete charge-discharge cycle — charge to full, allow the device to run on battery until it triggers low-battery shutdown, then recharge fully. After that cycle, the BMS calibrates correctly and the boot sequence completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after fitting a new cell, the NC3's charge IC applies a conservative upper voltage limit to the unfamiliar cell. This means the display may plateau at 90–95% and stop climbing. This is a BMS protection behaviour, not a capacity defect. Run the battery through one full discharge and recharge — the charge IC recalibrates its end-of-charge threshold against the actual cell chemistry and the indicator reaches 100% on subsequent charges. Do not pull the battery and retry charging; let the first cycle complete.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381431992410,"sku":"BWCS-CMN300MX-1","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381432025178,"sku":"BWCS-CMN300MX-2","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381432057946,"sku":"BWCS-CMN300MX-3","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CMN300MX-1.webp?v=1778900750","url":"https:\/\/batteryweb.com\/products\/comen-nc3-replacement-battery-111v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}