{"product_id":"zoll-metrax-eco-1-replacement-battery-144v-3000mah-ni-mh","title":"ZOLL 96017 Metrax ECO-1 Replacement Battery 14.4V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eZOLL Metrax ECO-1 \/ M240 \/ DM Series — 14.4V Ni-MH Replacement Battery (96017)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 3000mAh Ni-MH replacement battery for the ZOLL Metrax ECO-1 portable external defibrillator and compatible Metrax units including the M240, DM1, and DM3. It replaces OEM part number 96017. Voltage and capacity match the original cell pack to maintain correct BMS handshake and charge thresholds.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMetrax ECO-1, M240, DM1, DM3 compatibility:\u003c\/strong\u003e\n    These models share the same 14.4V Ni-MH architecture, connector pinout, and BMS communication protocol — one cell pack works across the series 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 charge, BMS interrogation, and discharge on Metrax hardware. The BMS accepted the pack, completed its verification handshake, and logged no fault codes across multiple test cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installing this battery, let the defibrillator complete its full power-on self-test without interruption. Metrax devices run a BMS verification sequence at startup — cutting power during this window flags a 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\"\u003eCharge indicator not reaching 100% on first charge in a Metrax unit\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Metrax charge IC applies a conservative current ceiling when it detects a new or previously uncharged Ni-MH cell pack. This is intentional — the charge controller throttles back to prevent over-temperature on cells with no established capacity baseline. On the first charge cycle, the indicator may plateau below 100% and stall. Complete one full charge-discharge cycle and the charge IC recalibrates its endpoint detection to the actual cell capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the BMS compares resting cell voltage against a threshold tuned to aged OEM cell chemistry. A new Ni-MH pack has slightly different internal resistance and open-circuit voltage profile than a broken-in cell — the BMS reads this as a marginal charge state and raises the alarm. The fix is one full charge-discharge cycle, which allows the BMS to build an accurate internal model of the replacement pack. After that cycle, alarm behaviour returns to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381490384986,"sku":"BWCS-MTD100MD-1","price":184.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381490417754,"sku":"BWCS-MTD100MD-2","price":219.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381490450522,"sku":"BWCS-MTD100MD-3","price":245.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTD100MD-1.webp?v=1778901266","url":"https:\/\/batteryweb.com\/products\/zoll-metrax-eco-1-replacement-battery-144v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}