{"product_id":"fukuda-ecg-fx-2201-replacement-battery-96v-2000mah-ni-mh","title":"Fukuda ECG FX-2201 Replacement Battery 9.6V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFukuda ECG FX-2201 \/ FX-7202 Series — 9.6V Ni-MH Replacement Battery (8PHR)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V 2000mAh Ni-MH replacement battery for the Fukuda ECG FX-2201, FX-7202, FX-7201, and Denshi ECG CardiMax FX-7202 electrocardiograph machines. It replaces OEM part numbers 8PHR and T8HRAAU-4713. Capacity is 2000mAh (19.2Wh), matching the original pack specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFX-2201 \/ FX-7201 \/ FX-7202 platform fit:\u003c\/strong\u003e\n    These three ECG models share the same 9.6V eight-cell Ni-MH battery bay, connector pinout, and BMS communication protocol — one battery pack covers all of them without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the FX-7202's power-on self-test sequence. The BMS registered cell voltage within the expected 9.6V band and passed the internal resistance check on the first full charge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test cycle:\u003c\/strong\u003e\n    After fitting this battery, allow the ECG unit to complete its full power-on self-test without interruption. Ni-MH packs need one uninterrupted startup sequence for the device's BMS to accept the new cell profile — cutting power during this sequence logs a persistent battery fault that won't clear 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 FX-2201 flags a battery fault on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe FX-2201's BMS stores a charge history from the previous pack. When a new cell is installed, the device compares resting voltage and internal resistance against that stored profile. A fresh Ni-MH cell's internal resistance sits slightly higher than a conditioned pack, which can trip a fault flag on first boot. Running one complete charge-discharge cycle brings cell resistance into the normal operating window. After that cycle, the fault flag clears automatically on the next startup.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stalling below 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after installation, the FX-series charge IC applies a conservative current limit to new Ni-MH cells — this is normal behaviour, not a fault. The charge indicator may plateau at 80–90% for an extended period before completing. This happens because the charge controller is using a delta-V detection algorithm, and a new cell's voltage curve is flatter than a conditioned pack. Let the charge cycle complete fully without interrupting it; subsequent charges will track to 100% normally once the cells have one full cycle on them.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381481308250,"sku":"BWCS-FDX202MD-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381481341018,"sku":"BWCS-FDX202MD-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381481373786,"sku":"BWCS-FDX202MD-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FDX202MD-1.webp?v=1778901171","url":"https:\/\/batteryweb.com\/products\/fukuda-ecg-fx-2201-replacement-battery-96v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}