{"product_id":"biomedical-micro1-spirometer-replacement-battery-24v-2000mah-ni-mh","title":"Biomedical 36-BAT1043 Micro1 Spirometer Compatible Battery 2.4V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBiomedical Micro1 Spirometer — 2.4V Ni-MH Replacement Battery (36-BAT1043)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 2.4V, 2000mAh Ni-MH battery replaces part number 36-BAT1043 in the Biomedical Micro1 Spirometer. The Micro1 is a handheld pulmonary function testing device used in clinical and home monitoring settings. This cell restores power to the device when the original battery has degraded past usable capacity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMicro1 Spirometer platform fit:\u003c\/strong\u003e\n    The Micro1 runs a fixed 2.4V rail with a two-cell Ni-MH configuration. The connector pinout and BMS handshake match OEM part numbers 36-BAT1043 and OM11861. No modification needed — the BMS reads cell chemistry and voltage on first power-up.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the Micro1's power-on self-test sequence. The BMS initialised correctly, accepted a full charge cycle, and passed the device's internal voltage verification. Capacity measured at rated spec across the first three charge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the Micro1 to complete its full power-on self-test without interruption. The device runs a BMS verification at startup — cutting power mid-sequence logs a false battery fault that persists until the next full reboot and can trigger repeated low-battery alerts on a fully charged cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Micro1 alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Micro1's BMS stores a reference charge profile calibrated to the OEM cell's internal resistance. A new replacement cell has a slightly different resistance signature, even at the same chemistry and voltage. On the first cycle, the BMS may flag this mismatch as a low-battery condition before it updates its stored profile. Run one complete charge-discharge cycle and the BMS recalibrates to the new cell — the false alarm clears without any firmware intervention.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMicro1 not completing boot sequence after the battery has been in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. A cell stored for several months can drop below the Micro1's BMS recovery threshold — typically around 1.8V per cell, or 3.6V across the pack. Below this floor, the BMS blocks the boot sequence entirely as a protection measure rather than attempting a low-voltage startup. Connect the device to its charger for a minimum of 30 minutes before pressing power — this brings the cell above the recovery threshold and allows the BMS to release the boot lock.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381367210074,"sku":"BWCS-BMR100MD-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381367242842,"sku":"BWCS-BMR100MD-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381367275610,"sku":"BWCS-BMR100MD-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BMR100MD_1.webp?v=1778900266","url":"https:\/\/batteryweb.com\/products\/biomedical-micro1-spirometer-replacement-battery-24v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}