{"product_id":"fukuda-fx-2111-replacement-battery-96v-2000mah-ni-mh","title":"Fukuda FX-2111 Compatible Battery 9.6V 2000mAh HHR-13F8G1","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFukuda FX-2111 \/ FCP-2155 \/ FX-2155 — 9.6V Ni-MH Replacement Battery (HHR-13F8G1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V, 2000mAh Ni-MH replacement battery for the Fukuda FX-2111, FCP-2155, and FX-2155 electrocardiograph machines. It replaces OEM part numbers HHR-13F8G1 and 8-HRAAFD. These are portable cardiac diagnostic devices used in clinical settings to capture and record cardiac electrical activity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFX-2111, FCP-2155, and FX-2155 compatibility:\u003c\/strong\u003e\n    All three models share the same 9.6V battery rail, connector pinout, and BMS handshake protocol. A single cell pack services the full range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the FX-2111 charge cycle and monitored BMS communication at each stage. The pack cleared OEM charge thresholds and passed the device's internal battery verification routine on the second full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the device to complete its full power-on self-test without interruption. The FX-2111 runs a BMS verification sequence at startup — cutting power mid-sequence flags a false battery fault that persists until the next complete reboot cycle.\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-2111 reports low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe FX-2111 charge IC compares cell voltage against a threshold calibrated for the OEM cell's internal resistance profile. A new replacement cell has a slightly different resistance curve in the first few cycles, which causes the BMS to under-report state-of-charge. The alarm clears after one complete charge-discharge cycle lets the BMS re-map the cell. Do not use the device clinically until that calibration cycle is complete.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFX-2111 failing to complete boot sequence after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. A pack stored for several months can drop below 8.0V — the minimum voltage the FX-2111 BMS requires to initiate boot. At that point the device will not power on at all, even with the charger connected. Place the battery on charge for a minimum of four hours before attempting to power the device. If the pack recovers above 9.0V and holds, it will complete the boot sequence normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381520793690,"sku":"BWCS-FXD211MD-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381520826458,"sku":"BWCS-FXD211MD-2","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381520859226,"sku":"BWCS-FXD211MD-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FXD211MD-1.webp?v=1778901369","url":"https:\/\/batteryweb.com\/products\/fukuda-fx-2111-replacement-battery-96v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}