{"product_id":"invivo-research-4500-plus-replacement-battery-12v-2300mah-sealed-lead-acid","title":"Invivo Research 4500 Plus Replacement Battery 12V 2300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eInvivo Research 4500 Plus \/ MRI Monitor 4500 — 12V Sealed Lead Acid Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 2300mAh (27.6Wh) sealed lead acid replacement battery for the Invivo Research 4500 Plus and MRI Monitor 4500 clinical monitoring units. It also fits the Omega 1400 and HB03 platforms that share the same 12V SLA bay and connector footprint. Dimensions are 178.00 x 66.60 x 35.00mm — verify clearance before fitting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4500 Plus \/ MRI Monitor 4500 \/ Omega 1400 \/ HB03 compatibility:\u003c\/strong\u003e\n    These units share a common 12V SLA bay, identical terminal orientation, and the same BMS voltage thresholds. One cell spec covers all four platforms without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and load on the 4500 Plus platform. The BMS accepted the cell on first insertion, completed the startup verification sequence, and held the charge indicator at full through a sustained monitoring load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After installing this battery, allow the 4500 Plus to complete its full power-on self-test cycle without interruption. Medical device BMS routines run a verification pass at startup — cutting power mid-sequence registers a false 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\"\u003eWhy the 4500 Plus alarms low battery with a freshly charged replacement installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 4500 Plus BMS stores a learned capacity profile from the previous cell. A new SLA cell at full charge reads a slightly different internal resistance and resting voltage than the aged OEM cell the BMS was calibrated against. The monitor interprets this mismatch as a low-state cell and triggers the alarm. Run one complete charge-discharge cycle on the unit before clinical use — the BMS recalibrates its threshold to the new cell's actual profile after that first full cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice will not power on after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSealed lead acid cells self-discharge during storage at roughly 3–5% per month. If the cell drops below approximately 10.5V, the 4500 Plus BMS enters deep-discharge lockout and will not initiate startup. Connect the unit to mains and leave it on charge for a minimum of 12 hours before attempting to power on. If the charge indicator does not respond within the first 30 minutes, check that terminal voltage has recovered above 11V with a multimeter before assuming a faulty cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381388247130,"sku":"BWCS-SHT160MD-1","price":310.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381388279898,"sku":"BWCS-SHT160MD-2","price":370.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381388312666,"sku":"BWCS-SHT160MD-3","price":415.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHT160MD-1.webp?v=1778900511","url":"https:\/\/batteryweb.com\/products\/invivo-research-4500-plus-replacement-battery-12v-2300mah-sealed-lead-acid","provider":"BatteryWeb","version":"1.0","type":"link"}