{"product_id":"alaris-medicalsystems-iii-infusion-pump-replacement-battery-36v-3000mah-ni-mh","title":"Alaris Medicalsystems III Infusion Pump Compatible Battery 3.6V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlaris Medicalsystems III Infusion Pump — 3.6V Ni-MH Replacement Battery (NIAL9163)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 3000mAh Ni-MH replacement battery for the Alaris Medicalsystems III Infusion Pump and compatible models including the Med Systems III and 2800 series. It replaces OEM part numbers NIAL9163, 2860703, and 5624-A. The battery supports portable pump operation during intravenous fluid and medication delivery in clinical and home care settings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIII Infusion Pump series compatibility:\u003c\/strong\u003e\n    The III, Infusion Pump III, Med Systems III, and 2800 series all share the same 3.6V single-cell Ni-MH architecture and connector interface. The BMS on these pumps handshakes with the cell chemistry at startup — swapping to a different voltage or chemistry triggers a persistent fault flag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the pump's power-on self-test sequence and confirmed the BMS accepted the cell on the first full charge. Charge acceptance was normal across the first three cycles, with no voltage drop flags or self-test rejections logged.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installing this battery, allow the pump to complete its full power-on self-test without interruption. The device runs a BMS verification routine at boot — cutting power mid-sequence causes a false battery fault that persists until the next clean reboot from a fully charged state.\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 the first charge after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAlaris III pump charge ICs apply a conservative current limit when they detect a new or deeply discharged Ni-MH cell. On the first charge, the IC may terminate early at 85–90% state of charge rather than completing a full cycle. This is a protection behaviour, not a fault. Run one full charge-to-discharge-to-charge cycle and the charge IC recalibrates its termination threshold. After that cycle, the indicator should reach 100% consistently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePump alarming low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Alaris III BMS uses a learned voltage profile to assess cell health — on a brand-new cell, that profile hasn't been established yet. The BMS compares real-time voltage against OEM baseline thresholds, and a fresh cell can read low under the pump's initial load spike even when fully charged. This triggers the low battery alarm within minutes of startup. Complete one full charge-discharge cycle before clinical use so the BMS can build an accurate capacity baseline for the new cell. After that cycle, alarm behaviour returns to normal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381438677082,"sku":"BWCS-AMS916MD-1","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381438709850,"sku":"BWCS-AMS916MD-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381438742618,"sku":"BWCS-AMS916MD-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AMS916MD-1.webp?v=1778900837","url":"https:\/\/batteryweb.com\/products\/alaris-medicalsystems-iii-infusion-pump-replacement-battery-36v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}