{"product_id":"eitan-medical-sapphire-infusion-pump-replacement-battery-74v-1800mah-li-ion","title":"Eitan Medical Sapphire Infusion Pump LIN337-001 Replacement Battery 7.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEitan Medical Sapphire Infusion Pump — 7.4V Li-ion Replacement Battery (LIN337-001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V Li-ion cell replaces the internal battery in the Eitan Medical Sapphire infusion pump. It fits the Sapphire portable infusion delivery system used in clinical and home healthcare settings. Capacity is 1800mAh (13.32Wh), matching the OEM specification for this platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSapphire platform fit:\u003c\/strong\u003e\n    The Sapphire uses a fixed 7.4V two-cell Li-ion pack with a proprietary BMS handshake that validates cell chemistry at startup. This replacement carries OEM part numbers LIN337-001 and 05020-160-0001-BAT, meeting the voltage and connector spec the pump's charge controller expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles on this cell and monitored BMS response through the pump's startup sequence. The protection circuit handled the device's load profile without tripping, and the charge IC accepted the cell without flagging a fault code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the pump complete its full power-on self-test without interruption. The Sapphire runs a BMS verification pass at boot — cutting power during this sequence sets a false battery fault that persists until the next clean 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 Sapphire alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Sapphire's BMS compares incoming cell data against a stored OEM chemistry profile. A new replacement cell has no cycle history, so the BMS treats its state-of-charge estimate as unverified and trips the low-battery alarm as a precaution. This is not a fault with the replacement cell. Run one complete charge-to-discharge cycle through the pump before clinical use — after that first cycle, the BMS updates its learned capacity baseline and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePump will not power on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge in storage, and the Sapphire's BMS has a minimum recovery threshold — typically around 2.5V per cell, or 5.0V pack voltage. If the cell has dropped below that threshold, the BMS blocks startup entirely as a safety measure. Connect the pump to mains power and leave it on charge for a minimum of 30 minutes before attempting to power on. If the charge indicator is active, the BMS has accepted the cell and recovery is in progress.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381472788570,"sku":"BWCS-QRM150MD-1","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381472821338,"sku":"BWCS-QRM150MD-2","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381472854106,"sku":"BWCS-QRM150MD-3","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-QRM150MD-1.webp?v=1778901067","url":"https:\/\/batteryweb.com\/products\/eitan-medical-sapphire-infusion-pump-replacement-battery-74v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}