{"product_id":"bionet-bm3-pro-replacement-battery-108v-3350mah-li-ion","title":"Bionet BM3 Pro 10.8V Replacement Battery 36L335-BIO-S","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBionet BM3 Pro Series — 10.8V Li-ion Replacement Battery (36L335-BIO-S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V 3350mAh Li-ion battery replaces the original pack in the Bionet BM3 Pro, BM3Vet Elite, BM5Vet Elite, and Elite 3 portable patient monitors. These monitors share a common battery bay, connector pinout, and BMS communication protocol across the listed models. Capacity is 3350mAh (36.18Wh) — matching the OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBM3 Pro and BM3Vet Elite cross-compatibility:\u003c\/strong\u003e\n    Both models run the same 10.8V three-cell Li-ion architecture with an identical BMS handshake. The battery bay dimensions and connector locking tab are shared, so one pack covers both clinical and veterinary variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the BM3 Pro's startup self-test and parameter monitoring load. The BMS held voltage within spec across heart rate, SpO2, and NIBP measurement cycles with no mid-sequence cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBMS initialisation on first installation:\u003c\/strong\u003e\n    After fitting this battery, allow the BM3 Pro to complete its full power-on self-test without interruption. Interrupting the boot sequence before the BMS verification step finishes triggers a latching battery fault — it will not clear until the device is fully powered down and rebooted from scratch.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBM3 Pro not completing boot sequence on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BM3 Pro runs a BMS learn cycle during its first few charge-discharge passes on a new cell. Until that cycle completes, the charge IC applies a conservative current limit and the device firmware may read state-of-charge as indeterminate. This can stall the boot sequence at the self-test screen. Run one full charge to termination, then a full discharge under normal monitoring load, then recharge before placing the unit back in clinical rotation. After that cycle, the BMS reports state-of-charge accurately and boot completes normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stalls below 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge, the BM3 Pro's charge IC applies a reduced current ceiling to a new cell — this is normal behaviour, not a fault with the battery or charger. The indicator may sit at 95–98% for an extended period before the charge IC declares the cycle complete. Do not interrupt charging at this point. Let the cycle run to automatic termination; the charge IC will switch to trickle mode and the indicator will reach 100% once the cell voltage stabilises at 12.6V across all three cells.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381369307226,"sku":"BWCS-BEL300MX-1","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381369339994,"sku":"BWCS-BEL300MX-2","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381369372762,"sku":"BWCS-BEL300MX-3","price":83.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BEL300MX-1.webp?v=1778900351","url":"https:\/\/batteryweb.com\/products\/bionet-bm3-pro-replacement-battery-108v-3350mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}