{"product_id":"physio-control-life-pak-250-replacement-battery-72v-2000mah-ni-mh","title":"Physio-Control Life Pak 250 Replacement Battery 7.2V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhysio-Control Life Pak 250 — 7.2V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.2V, 2000mAh Ni-MH battery is a direct replacement for the Physio-Control Life Pak 250 portable AED. The Life Pak 250 delivers defibrillation therapy and continuous cardiac rhythm monitoring in emergency settings. Voltage and capacity match the original cell specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLife Pak 250 compatibility:\u003c\/strong\u003e\n    The Life Pak 250 runs its defibrillation charge circuit and rhythm monitoring load on a 7.2V Ni-MH rail. This battery matches that rail voltage and the physical connector footprint. The BMS accepts the cell without flag or fault under normal startup conditions.\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-discharge sequences and monitored BMS handshake at each startup. The charge IC recognised the Ni-MH chemistry correctly, and the cell passed the device's internal self-test after one full conditioning cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installing this battery, allow the Life Pak 250 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup — cutting power during this window triggers a persistent battery fault flag that won't clear until the next uninterrupted full 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 Life Pak 250 alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Life Pak 250 BMS uses a learned capacity threshold calibrated to the previous cell's charge history. A new Ni-MH cell hasn't yet established its full charge profile in the device's memory, so the BMS compares real-time voltage against an outdated reference. This causes a low battery alarm even when the cell is fully charged. Run one complete charge-discharge cycle inside the device to let the BMS recalibrate its threshold to the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLife Pak 250 not completing boot sequence after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge in storage at a rate of roughly 1–3% per day. A cell stored for several months can drop below the Life Pak 250's BMS recovery threshold — typically around 6.0V — which prevents the boot sequence from initiating at all. Connect the battery to the charger for a full charge before installing it in the device. Once voltage returns above the BMS floor, the device will boot and complete its self-test normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381489270874,"sku":"BWCS-DRX200MD-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381489303642,"sku":"BWCS-DRX200MD-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381489336410,"sku":"BWCS-DRX200MD-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DRX200MD-1.webp?v=1778901248","url":"https:\/\/batteryweb.com\/products\/physio-control-life-pak-250-replacement-battery-72v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}