{"product_id":"winland-d-011-0183-replacement-battery-74v-3400mah-li-ion","title":"Winland D-011-0183 Replacement Battery 7.4V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWinland D-011-0183 \/ EAPro Gateway — 7.4V Li-ion Replacement Battery (57685-101)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 3400mAh Li-ion cell replaces the OEM battery in the Winland D-011-0183, EnviroAlert Professional EAPro Gateway, and EAPro-GTWY environmental monitoring systems. It maintains backup power for sensors, alert logic, and notification outputs when mains power drops. Capacity and voltage match the OEM spec exactly — 3400mAh, 25.16Wh, 7.4V nominal.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD-011-0183 and EAPro Gateway compatibility:\u003c\/strong\u003e\n    All three fit models share the same 7.4V two-cell Li-ion architecture, the same connector pinout, and the same BMS handshake protocol — so one cell covers the full gateway platform without any wiring modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, float, and simulated mains-loss events on the EAPro Gateway. The BMS accepted the cell without fault codes, held float charge correctly, and triggered alert outputs as expected under backup load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation float charge window:\u003c\/strong\u003e\n    Do not run a zone or sensor diagnostic test immediately after fitting this cell. The panel requires 24–48 hours on float charge before its internal battery monitor will report full capacity — testing earlier will produce a false low-battery fault on the panel display.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm panel showing low battery hours after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D-011-0183 and EAPro Gateway use a voltage-based battery monitor that reads cell state during float charge, not immediately after installation. A freshly installed cell at partial charge will read below the panel's acceptance threshold — typically under 8.0V — triggering a low-battery fault even though the cell itself is fine. The panel needs the charger circuit to bring the cell up to full float, which takes 24–48 hours on a powered system. Once the cell reaches the float voltage target, the fault clears automatically without any panel reset.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm losing stored programming during a power outage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the EAPro Gateway loses its configuration settings during a mains outage shortly after a battery replacement, the new cell had not yet been fully accepted by the panel's backup circuit. The gateway only draws on the backup cell once it has completed a conditioning cycle — a cell installed less than 48 hours before the outage may not yet be online in the backup circuit. Restore mains power, allow a full 48-hour conditioning period, then simulate a mains-loss event to confirm the backup circuit is active. The panel should hold programming and sensor mappings through the outage once the cell is fully conditioned.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309774372954,"sku":"BWCS-WLD183BH-1","price":49.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43309774405722,"sku":"BWCS-WLD183BH-2","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43309774438490,"sku":"BWCS-WLD183BH-3","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WLD183BH-1.webp?v=1777868466","url":"https:\/\/batteryweb.com\/products\/winland-d-011-0183-replacement-battery-74v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}