{"product_id":"defigard-3002-ih-replacement-battery-144v-3000mah-ni-mh","title":"Defigard 3002 IH Replacement Battery 14.4V 3000mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDefigard 3002 IH \/ 3002 ICH — 14.4V Ni-MH Replacement Battery (MGN0259)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.4V 3000mAh Ni-MH battery replaces the MGN0259 in the Defigard 3002 IH and 3002 ICH defibrillators. These are clinical-grade emergency devices used for cardiac defibrillation in hospital and pre-hospital settings. Capacity is 3000mAh (43.2Wh), matching the OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3002 IH and 3002 ICH compatibility:\u003c\/strong\u003e\n    Both models share the same 14.4V battery rail, MGN0259 part number, and BMS handshake protocol. One cell fits both variants without modification to connectors or firmware thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell through full charge and discharge cycles on the 3002 platform. The BMS accepted the cell without fault flags, completed its capacity verification pass, and held voltage within the expected window across the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting the battery, allow the device to complete its full power-on self-test without interruption. The 3002's BMS runs a chemistry verification step at startup — cutting power during this sequence triggers a persistent battery fault that does not clear until the next full 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 Defigard 3002 reports low battery after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 3002's charge IC applies a conservative acceptance threshold calibrated to the OEM cell's internal resistance profile. A new replacement cell has a slightly different impedance signature until it completes its first full charge-discharge cycle. The BMS reads this as a partial charge state and triggers the low battery alert even when the cell is fully charged. One complete cycle — full charge, full discharge under normal device load, full charge again — resolves the mismatch and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDefigard 3002 not completing boot sequence after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day under typical storage conditions. A cell stored for several months can drop below the 3002's BMS recovery threshold — typically around 10.5V for a 14.4V Ni-MH pack — at which point the device refuses to boot rather than risk an under-voltage shock event. Connect the battery to the charger before installing it in the device. Most chargers will recover a deeply discharged Ni-MH cell with a conditioning pulse; allow the charge cycle to complete fully before fitting the cell and attempting boot.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381510864986,"sku":"BWCS-DEF300MD-1","price":101.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381510897754,"sku":"BWCS-DEF300MD-2","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381510930522,"sku":"BWCS-DEF300MD-3","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEF300MD-1.webp?v=1778901304","url":"https:\/\/batteryweb.com\/products\/defigard-3002-ih-replacement-battery-144v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}