{"product_id":"philips-moniteur-invivo-9064-replacement-battery-148v-5080mah-li-ion","title":"Philips M3964 InVivo 9064 Replacement Battery 14.8V 5080mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhilips Moniteur Invivo 9064 \/ Precess Series — 14.8V Li-ion Replacement Battery (M3964)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V, 5080mAh lithium-ion battery replaces the OEM pack (M3964 \/ 989803169491) in the Philips InVivo 9064 patient monitor and Precess 3160, 9030, and Precess Blue series. These are clinical-grade monitoring systems used to track patient vital signs in hospital settings. Voltage, connector, and BMS handshake match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInVivo 9064 and Precess platform compatibility:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell Li-ion architecture, battery bay connector pinout, and BMS communication protocol. One pack covers all listed variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on the InVivo 9064 platform. The BMS completed its handshake, reported state-of-charge correctly, and held voltage within spec across the load profile of the monitor's active acquisition mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the device to complete its full power-on self-test without interruption. The InVivo 9064 runs a BMS verification sequence at startup — cutting power during this step triggers 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 InVivo 9064 charge indicator stalls below 100% on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe InVivo 9064 charge IC applies a conservative current ceiling on new cells it has not previously profiled. On the first charge, the IC may hold the indicator at 85–95% well past what a seasoned pack would show. This is not a fault — the charge algorithm is applying a lower termination threshold until the BMS completes its first learn cycle. Run one full charge-to-discharge-to-charge cycle under normal clinical load before treating the indicator reading as authoritative. After that cycle, the charge IC recalibrates and the display reads correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe InVivo 9064 compares reported state-of-charge against an internal threshold calibrated to an OEM-profiled cell. A new replacement cell that has not completed its first full cycle may report a state-of-charge slightly below that threshold, triggering the low battery alarm even though the pack is physically full. The fix is to let the monitor complete one full supervised charge-discharge cycle before placing it in clinical rotation. After that cycle, the BMS learn routine completes and the alarm threshold aligns correctly with the new cell's charge curve. Do not clear the alarm manually — let the cycle resolve it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381442379866,"sku":"BWCS-INR909MD-1","price":295.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381442412634,"sku":"BWCS-INR909MD-2","price":351.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381442445402,"sku":"BWCS-INR909MD-3","price":394.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-INR909MD-1.webp?v=1778900838","url":"https:\/\/batteryweb.com\/products\/philips-moniteur-invivo-9064-replacement-battery-148v-5080mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}