{"product_id":"fukuda-fcb-220iu-replacement-battery-12v-3000mah-ni-mh","title":"Fukuda FCB-220IU 12V Replacement Battery BF300SCAH10","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFukuda FCB-220IU \/ ECG Cardimax Series — 12V Ni-MH Replacement Battery (BF300SCAH10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 3000mAh Ni-MH replacement battery for the Fukuda FCB-220IU and ECG Cardimax FCP-2201U, FCP-2201G, and FCP-2101 portable ECG units. It replaces OEM part BF300SCAH10 and slots into the same battery compartment without modification. Voltage and capacity match the original specification at 12V and 36Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCardimax FCP series compatibility:\u003c\/strong\u003e\n    The FCB-220IU and FCP-2201U, FCP-2201G, and FCP-2101 share the same 12V battery bay, connector pinout, and BMS handshake protocol — one cell fits the entire group without adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and load cycles on a Cardimax-class test rig. The BMS accepted the new Ni-MH cell without fault codes, and the charge IC completed its full trickle-to-termination cycle correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test requirement:\u003c\/strong\u003e\n    After installing this battery, let the device complete its full power-on self-test without interruption. Fukuda ECG units run a BMS verification routine at startup — cutting power during that sequence logs 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 Cardimax alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Cardimax BMS stores a learned capacity profile from the previous cell. A new Ni-MH replacement starts with no charge history, so the BMS compares its first discharge curve against the old profile and flags a mismatch as a low-battery condition. This is not a fault with the cell — it is the BMS running its learn cycle. One complete charge-discharge-recharge cycle rewrites the profile and clears the alarm. Do not use the unit clinically until that cycle is finished and the alarm is gone.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice will not power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day in storage. A cell that has sat for several months can drop below the BMS recovery threshold — typically around 10V on a 12V Ni-MH pack — and the device will show no response at power-on. Place the battery on a standalone Ni-MH charger and bring voltage above 11V before reinserting it. Once the cell clears the recovery threshold, the device will power on normally and the BMS will accept a full charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381506408538,"sku":"BWCS-FXB220MD-1","price":80.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381506441306,"sku":"BWCS-FXB220MD-2","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381506474074,"sku":"BWCS-FXB220MD-3","price":103.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FXB220MD-1.webp?v=1778901305","url":"https:\/\/batteryweb.com\/products\/fukuda-fcb-220iu-replacement-battery-12v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}