{"product_id":"microrae-pgm-2680-replacement-battery-37v-1900mah-li-ion","title":"MicroRAE PGM-2680 Replacement Battery 3.7V 1900mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMicroRAE PGM-2680 — 3.7V Li-ion Replacement Battery (M03-3004-000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1900mAh (7.03Wh) lithium-ion battery replaces part number M03-3004-000 in the MicroRAE PGM-2680 portable multi-gas detector. The PGM-2680 is used for industrial hygiene surveys and hazardous gas monitoring in workplace environments. Swapping a depleted cell gets the instrument back in the field without sending the unit in for service.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePGM-2680 fit:\u003c\/strong\u003e\n    The PGM-2680 uses a single-cell 3.7V Li-ion pack with a dedicated BMS that manages the sensor array's power rail. Voltage tolerance on this platform is tight — the cell must hold its nominal output under sustained multi-sensor draw, or the unit flags a low-power fault before the cell is actually depleted.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through the PGM-2680's charge and power-on sequence. The BMS handshake completed cleanly, sensor initialisation drew without triggering an overcurrent cutoff, and the pack held voltage above the instrument's fault threshold through a full simulated monitoring session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePre-deployment calibration:\u003c\/strong\u003e\n    After installing this battery, run a full calibration cycle through the PGM-2680's instrument menu before field use. The unit maps battery state during calibration — skipping this step causes premature low-battery warnings during the first monitoring session, even with 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 PGM-2680 throws a low-battery fault before the cell is exhausted\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PGM-2680 monitors voltage against fixed thresholds to protect sensor accuracy during gas detection. When a degraded or mismatched cell sags under the combined draw of multiple active sensors, voltage drops below the fault threshold even if capacity remains. The instrument treats this as a low-battery condition and interrupts operation. A fresh cell with correct internal resistance stays above that threshold through sustained sensor load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePGM-2680 won't charge after sitting unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in the PGM-2680 self-discharge during storage. If the pack drops below approximately 2.5V, the BMS enters a protection lockout and the charger sees no load — the charge LED may not activate at all. Some units will recover with a trickle charge held at 2.5–3.0V for 10–15 minutes before the BMS resets and accepts a normal charge cycle. If the pack does not respond after that recovery attempt, the cell has discharged past recovery and needs replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360456507482,"sku":"BWCS-PGM268SL-1","price":145.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43360456540250,"sku":"BWCS-PGM268SL-2","price":173.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43360456573018,"sku":"BWCS-PGM268SL-3","price":194.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PGM268SL-1.webp?v=1778615901","url":"https:\/\/batteryweb.com\/products\/microrae-pgm-2680-replacement-battery-37v-1900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}