{"product_id":"honeywell-bw-icon-4-gas-detector-h2s-co-o2-lel-replacement-battery-37v-1200mah-li-polymer","title":"Honeywell BW Icon + 4 Replacement Battery M05-3001-000 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHoneywell BW Icon+ Series — 3.7V Li-Polymer Replacement Battery (M05-3001-000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1200mAh Li-Polymer battery replaces part number M05-3001-000 in the Honeywell BW Icon+ 4 Gas Detector. It fits the Icon+, Flex, and Icon models used for simultaneous H2S, CO, O2, and LEL detection. At 66.20 x 51.10 x 12.20mm, it seats directly into the existing battery bay without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIcon+, Flex, and Icon compatibility:\u003c\/strong\u003e\n    All three models share the same 3.7V power rail, M05-3001-000 connector footprint, and BMS handshake protocol. Swapping across models in this family works without firmware conflict or charge-circuit mismatch.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge-discharge cycles on the BW Icon+ platform, monitoring BMS response during the four-sensor initialisation sequence. The pack held voltage without triggering a low-battery cutoff at sensor start-up.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The Icon+ maps battery state during calibration — skipping this step causes premature low-battery warnings during your first monitoring session in the field.\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 BW Icon+ sat unused in a carry case for months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge slowly in storage. If the pack voltage drops below approximately 2.5V per cell, the BMS enters a protective lockout state and the instrument will not respond to the power button. A standard charger may also refuse to initiate a charge cycle because it reads the pack as faulted. To recover, connect the instrument to its dock charger and leave it for 30–60 minutes without pressing anything — the charger's trickle-charge stage brings the cell back above the BMS recovery threshold before the main charge cycle begins.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eVoltage dropout mid-session causing sensor readings to reset or freeze\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BW Icon+ runs four electrochemical sensors simultaneously, and sustained load across all channels draws more current than any single-sensor device. If the cell is partially depleted, this sustained draw can pull bus voltage below the instrument's operational floor, triggering a mid-session reset without a low-battery warning first. This is not a firmware fault — it is a cell capacity issue. Confirm the pack is charging fully to 4.2V at the terminal before each shift to avoid this during active monitoring.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360434126938,"sku":"BWCS-HNY530SL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360434159706,"sku":"BWCS-HNY530SL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360434192474,"sku":"BWCS-HNY530SL-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HNY530SL-1.webp?v=1778614685","url":"https:\/\/batteryweb.com\/products\/honeywell-bw-icon-4-gas-detector-h2s-co-o2-lel-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}