{"product_id":"breas-vivo-45-ventilator-replacement-battery-144v-6400mah-li-ion","title":"BREAS Vivo 45 Ventilator Replacement Battery 14.4V 6400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBREAS Vivo 45 Ventilator — 14.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 6400mAh (92.16Wh) Li-ion battery pack for the BREAS Vivo 45 portable ventilator. It fits the Vivo 45 directly and restores untethered operation for home care, patient transport, and situations where mains power is unavailable. Capacity and voltage match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVivo 45 platform fit:\u003c\/strong\u003e\n    The Vivo 45 uses a 14.4V multi-cell Li-ion pack with a proprietary BMS handshake. This pack meets that voltage rail and communicates charge state back to the ventilator's internal management system so the device reads battery status correctly on the display.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge cycles on a Vivo 45 unit. The BMS held cutoff thresholds within spec, the ventilator accepted the pack without fault codes, and charge state reporting tracked accurately across full cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation initialisation on the Vivo 45:\u003c\/strong\u003e\n    After fitting this pack, run the ventilator from full charge until the low-battery alarm triggers once before relying on it clinically. The Vivo 45 recalibrates its charge-state display against the actual cell behaviour during this first discharge — skipping it can cause the battery indicator to show incorrect remaining capacity in early sessions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Vivo 45 trips a battery fault during motor start on a fresh pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Vivo 45's blower motor draws a short inrush current spike at startup that briefly exceeds steady-state load. On a new pack that hasn't yet completed a conditioning cycle, the BMS can interpret this spike as an overcurrent event and throw a battery fault flag. This is a BMS threshold response, not a faulty pack. Running one full charge-to-low-alarm discharge cycle after installation lowers the BMS's sensitivity to the startup spike on subsequent power-ons.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVivo 45 battery indicator stuck at a fixed percentage after fitting a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Vivo 45 stores a charge-state model in firmware that was built around the old pack's cell behaviour. When a new pack is installed, the voltage curve doesn't match the stored model, so the indicator freezes or jumps erratically. This isn't a hardware fault — the ventilator needs a full discharge and recharge cycle to rebuild its internal state map against the new cells. After one complete cycle, the percentage display tracks normally. If it remains stuck after two full cycles, verify the pack is seated fully and the contacts are clean before investigating further.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360688898138,"sku":"BWCS-EFT200SL-1","price":281.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360688930906,"sku":"BWCS-EFT200SL-2","price":335.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360688963674,"sku":"BWCS-EFT200SL-3","price":376.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EFT200SL-1.webp?v=1778616161","url":"https:\/\/batteryweb.com\/products\/breas-vivo-45-ventilator-replacement-battery-144v-6400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}