{"product_id":"microrae-pgm-6208-replacement-battery-37v-3600mah-li-ion","title":"MicroRAE PGM-6208 Replacement Battery 3.7V 3600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMicroRAE PGM-6208 \/ PGM-6228 — 3.7V Li-ion Replacement Battery (M01-3053-000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 3600mAh Li-ion pack replaces the OEM battery (M01-3053-000) in the MicroRAE PGM-6208 and PGM-6228 multi-gas detectors. Both instruments are portable gas monitoring devices used in confined space entry, environmental surveys, and industrial hygiene inspections. Cell chemistry and BMS communication parameters match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePGM-6208 and PGM-6228 compatibility:\u003c\/strong\u003e\n    Both instruments share the same battery bay geometry, connector pinout, and BMS handshake protocol — one pack covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through sensor initialisation cycles on both instruments. The BMS handled the current spike at multi-sensor power-up without tripping into protection mode, and the instrument accepted the pack without a firmware error.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation calibration step:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The PGM-6208 and PGM-6228 map battery state during calibration — skipping this step causes premature low-battery warnings during the first monitoring session.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS lockout after the PGM-6208 sat unused in a carry case for months\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that sit discharged for an extended period can drop below the BMS recovery threshold — typically around 2.5V per cell. When that happens, the protection circuit latches off and the instrument sees no pack at all, even though the battery is physically installed. The fix is to apply a slow, low-current charge using a compatible charger for 15–30 minutes before attempting to power on the instrument. Once cell voltage climbs above the recovery threshold, the BMS releases the latch and normal charging resumes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReadings drifting or logging session restarting mid-survey\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PGM-6208 sustains a combined load from multiple electrochemical sensors, the pump motor, and the display simultaneously — this draw is higher than standby and can cause brief voltage dropout on a degraded or partially charged pack. When voltage sags below the instrument's operating floor, the firmware resets the logging session rather than risk corrupted data. This is not a firmware fault — it means the pack is not holding voltage under sustained load. Charge the battery fully and retest; if the session still resets, check resting voltage after a 10-minute load period and compare against the 3.7V nominal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360456409178,"sku":"BWCS-PGM620SL-1","price":243.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360456441946,"sku":"BWCS-PGM620SL-2","price":291.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360456474714,"sku":"BWCS-PGM620SL-3","price":326.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PGM620SL-1.webp?v=1778615900","url":"https:\/\/batteryweb.com\/products\/microrae-pgm-6208-replacement-battery-37v-3600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}