{"product_id":"hellige-marquette-eagle-4000-replacement-battery-12v-2800mah-ni-mh","title":"Hellige Marquette Eagle 4000 Replacement Battery 12V 2800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHellige Marquette Eagle 4000 — 12V Ni-MH Replacement Battery (110184)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 2800mAh Ni-MH replacement battery for the Hellige Marquette Eagle 4000 electrocardiograph. It fits the portable ECG unit used in clinical and hospital environments for cardiac recording and analysis. Voltage and capacity match the OEM specification (110184).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEagle 4000 platform fit:\u003c\/strong\u003e\n    The Eagle 4000 uses a 12V Ni-MH pack with a specific connector orientation and BMS handshake tied to the OEM part number 110184. This replacement matches that voltage rail and connector so the device accepts the pack without fault codes on power-up.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and load discharge on a medical-grade bench tester. The BMS completed its verification sequence without tripping a chemistry mismatch flag, and the charge indicator advanced normally through each stage.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the Eagle 4000 complete its full power-on self-test without interrupting the sequence. The device runs a BMS verification at startup — cutting power during this window locks in 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 Eagle 4000 may not complete its boot sequence on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Eagle 4000 checks cell voltage during boot and compares it against a threshold set for a conditioned Ni-MH pack. A new cell sitting in storage self-discharges, and if it arrives below roughly 11.4V open-circuit, the device may stall mid-boot or display a battery error. Charge the replacement fully before the first installation. Once the pack reaches 12V and the self-test passes, the boot sequence completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the Eagle 4000's charge IC sets a conservative acceptance threshold on the first cycle — the BMS has not yet learned the actual capacity of the new cell. The alarm does not mean the battery is faulty. Run one full charge-to-discharge cycle before clinical use. After that conditioning cycle, the BMS recalibrates its gauge and the low-battery alarm clears at the correct state of charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381488386138,"sku":"BWCS-GME400MD-1","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381488418906,"sku":"BWCS-GME400MD-2","price":113.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381488451674,"sku":"BWCS-GME400MD-3","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GME400MD-1.webp?v=1778901265","url":"https:\/\/batteryweb.com\/products\/hellige-marquette-eagle-4000-replacement-battery-12v-2800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}