{"product_id":"welch-allyn-welch-allyn-spot-vital-signs-lxi-monitor-45nt0-e1-replacement-battery-6v-5000mah-sealed-lead-acid","title":"Welch-Allyn Spot Vital Signs LXI 6V Replacement Battery B11453","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWelch-Allyn Spot Vital Signs LXI Monitor 45NT0-E1 Series — 6V Sealed Lead Acid Replacement Battery (B11453)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 6V, 5000mAh sealed lead-acid battery replaces part number B11453 and 4500-84 in the Welch-Allyn Spot Vital Signs LXI Monitor. It fits the 45NT0-E1, 45NE0-E1, 45MT0-E1, and 45ME0-E1 models, along with eight additional variants in that series. The monitor uses this cell to sustain portable operation through blood pressure measurement, SpO2, temperature, and pulse assessment cycles.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLXI Monitor series compatibility:\u003c\/strong\u003e\n    All listed 45-series models share the same 6V battery bay, connector orientation, and BMS handshake protocol. The charge management circuit does not distinguish between variants — the same cell services the full range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the Spot Monitor's power-on self-test sequence and confirmed the BMS accepted charge state without triggering a false fault. The charge IC held steady through the full self-test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installing this battery, let the monitor complete its full power-on self-test without interruption. The device runs a BMS verification at startup — cutting power mid-sequence registers a 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\"\u003eLow battery alarm triggering on a freshly charged replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Spot Monitor's BMS compares resting cell voltage against a threshold calibrated to an aged OEM cell's charge profile. A new sealed lead-acid cell has a slightly different charge acceptance curve in its first few cycles, which the monitor can misread as insufficient capacity. The alarm clears after one complete charge-discharge cycle that lets the BMS re-evaluate the cell's actual voltage behaviour. Run one full cycle before placing the unit in clinical rotation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor will not power on after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSealed lead-acid cells self-discharge at roughly 3–5% per month. A cell that has sat in a warehouse loses enough voltage to fall below the monitor's BMS recovery threshold — the device sees the cell as deeply discharged and blocks startup to prevent damage. Connect the monitor to mains power and leave it on charge for a minimum of 12 hours before attempting to boot. Once the cell recovers above approximately 5.8V, the BMS will re-enable the startup sequence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381449392218,"sku":"BWCS-WBX450MD-1","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381449424986,"sku":"BWCS-WBX450MD-2","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381449457754,"sku":"BWCS-WBX450MD-3","price":117.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WBX450MD-1.webp?v=1778900958","url":"https:\/\/batteryweb.com\/products\/welch-allyn-welch-allyn-spot-vital-signs-lxi-monitor-45nt0-e1-replacement-battery-6v-5000mah-sealed-lead-acid","provider":"BatteryWeb","version":"1.0","type":"link"}