{"product_id":"fox-ess-ecs-cs4000-4kwh","title":"Fox ESS ECS4000 Battery CS4000 | Sub LFP Stackable Batteries With Full Capacity 3.975kWh","description":"\u003cp\u003eThe \u003cstrong data-start=\"4\" data-end=\"14\"\u003eCS4000\u003c\/strong\u003e is a\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e LiFePO₄ (lithium iron phosphate) battery \u003cstrong data-start=\"43\" data-end=\"59\"\u003eslave module\u003c\/strong\u003e within the \u003cstrong data-start=\"71\" data-end=\"89\"\u003eECS4000 series\u003c\/strong\u003e. It p\u003c\/span\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eairs with a \u003cstrong data-start=\"13\" data-end=\"41\"\u003eCM4000 controller module\u003c\/strong\u003e to form scalable battery stacks—each CS4000 adds ~3.97 kWh of capacity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"1190\" data-start=\"1145\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"34\" data-is-only-node=\"\"\u003eHigh Voltage, High Performance\u003c\/strong\u003e: Enables scalable stacks up to ~459.9 V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"1526\" data-end=\"1609\"\u003e\n\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"24\" data-is-only-node=\"\"\u003ePlug-and-Play Design\u003c\/strong\u003e: Snap-fit modules with CAN bus communication simplify installation\u003c\/span\u003e \u003c\/li\u003e\n\u003cli data-start=\"1526\" data-end=\"1609\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"24\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"0\" data-end=\"27\" data-is-only-node=\"\"\u003eSafety \u0026amp; Certifications\u003c\/strong\u003e: \u003c\/strong\u003eUL1973, UL9540, UL9540A, UN38.3 certified; outdoor-rated IP65 enclosure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003cstrong data-start=\"0\" data-end=\"17\" data-is-only-node=\"\"\u003eLong Warranty\u003c\/strong\u003e: 12.5 years standard\u003c\/span\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"1190\" data-start=\"1145\"\u003eSystem Configurations (ECS4000 Series)\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\n\u003cdiv class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2263\" data-start=\"1192\"\u003e\n\u003cthead data-end=\"1276\" data-start=\"1192\"\u003e\n\u003ctr data-end=\"1276\" data-start=\"1192\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1216\" data-start=\"1192\"\u003eModules (1 CM + N CS)\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1233\" data-start=\"1216\"\u003eCapacity (kWh)\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1255\" data-start=\"1233\"\u003eNominal Voltage (V)\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"1276\" data-start=\"1255\"\u003eVoltage Range (V)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2263\" data-start=\"1363\"\u003e\n\u003ctr data-end=\"1506\" data-start=\"1363\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1416\" data-start=\"1363\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH2 (1 + 1)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1433\" data-start=\"1416\" data-col-size=\"sm\"\u003e7.95\u003c\/td\u003e\n\u003ctd data-end=\"1456\" data-start=\"1433\" data-col-size=\"sm\"\u003e115.2\u003c\/td\u003e\n\u003ctd data-end=\"1506\" data-start=\"1456\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e97.2–131.4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1649\" data-start=\"1507\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1560\" data-start=\"1507\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH3 (1 + 2)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1577\" data-start=\"1560\" data-col-size=\"sm\"\u003e11.9\u003c\/td\u003e\n\u003ctd data-end=\"1600\" data-start=\"1577\" data-col-size=\"sm\"\u003e172.8\u003c\/td\u003e\n\u003ctd data-end=\"1649\" data-start=\"1600\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e145.8–197.1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1792\" data-start=\"1650\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1703\" data-start=\"1650\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH4 (1 + 3)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1720\" data-start=\"1703\" data-col-size=\"sm\"\u003e15.9\u003c\/td\u003e\n\u003ctd data-end=\"1743\" data-start=\"1720\" data-col-size=\"sm\"\u003e230.4\u003c\/td\u003e\n\u003ctd data-end=\"1792\" data-start=\"1743\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e194.4–262.8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1937\" data-start=\"1793\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1846\" data-start=\"1793\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH5 (1 + 4)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1863\" data-start=\"1846\"\u003e19.9\u003c\/td\u003e\n\u003ctd data-end=\"1886\" data-start=\"1863\" data-col-size=\"sm\"\u003e288\u003c\/td\u003e\n\u003ctd data-end=\"1937\" data-start=\"1886\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e243–328.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2080\" data-start=\"1938\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1991\" data-start=\"1938\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH6 (1 + 5)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-end=\"2008\" data-start=\"1991\" data-col-size=\"sm\"\u003e23.8\u003c\/td\u003e\n\u003ctd data-end=\"2031\" data-start=\"2008\" data-col-size=\"sm\"\u003e345.6\u003c\/td\u003e\n\u003ctd data-end=\"2080\" data-start=\"2031\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e291.6–394.2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2263\" data-start=\"2081\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2134\" data-start=\"2081\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eH7 (1 + 6)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-end=\"2151\" data-start=\"2134\" data-col-size=\"sm\"\u003e27.8\u003c\/td\u003e\n\u003ctd data-end=\"2174\" data-start=\"2151\" data-col-size=\"sm\"\u003e403.2\u003c\/td\u003e\n\u003ctd data-end=\"2222\" data-start=\"2174\" data-col-size=\"sm\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e340.2–459.9\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-start=\"2824\" data-end=\"2840\"\u003eUse Cases\u003c\/h3\u003e\n\u003cul data-start=\"2842\" data-end=\"3099\"\u003e\n\u003cli\u003eIdeal for \u003cstrong data-start=\"2854\" data-end=\"2898\"\u003eresidential and small commercial storage\u003c\/strong\u003e, scaling from ~8 kWh up to ~28 kWh\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong data-start=\"2954\" data-end=\"2988\"\u003eFox H1-series hybrid inverters\u003c\/strong\u003e and other high-voltage systems\u003c\/li\u003e\n\u003cli data-start=\"2842\" data-end=\"2935\"\u003eOutdoor-ready, suitable for rooftop, garage, or ground-level battery setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eShipping and Packaging\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eThe battery can only ship via freight truck\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eDownload\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDatasheet\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/US-ESC4000-US-Mainland-0612.pdf?v=1687477883\" title=\"FoxESS ECS Battery Datasheet\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eFoxESS ECS4000 Datasheet\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eUser Manual \u0026amp; Installation Guide\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/USA-ECS4000-Manual-V1.1.pdf?v=1687479045\" title=\"FOXESS BATTERY user manual\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eFoxESS ECS4000 User Manual\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/USA-ECS4000-Guide-V1.1.pdf?v=1687479644\" title=\"FOXESS Battery Installation quick guide\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eFoxESS ECS4000 Installation Quick Guide\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/ECS4000-UL-9540A.pdf?v=1687480152\" title=\"FOXESS ECS Battery 9540A Certification\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eFox ECS4000-UL-9540A\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eHUB \u0026amp;WiFi\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/US-FOX-HUB-G2-Datasheet-0616.pdf?v=1687477884\" title=\"FOXESS Smart hub datasheet\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eFox Hub-G2 Datasheet\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/smart-wifi-Datasheet-3.23.pdf?v=1687477885\" title=\"FOXESS SMART WIFI DATASHEET\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eFox Smart WiFi Datasheet\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/web-FoxESSCloud-English-User-Manual.pdf?v=1687479044\" title=\"FOXESS FoxESSCloud User Manual\" style=\"color: #2b00ff;\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eFoxESS Cloud User Manual\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eAbout FOX ESS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eFOX ESS is a leading provider of advanced energy storage solutions that empower customers to optimize their energy usage, reduce their carbon footprint, and enhance their energy independence. Founded in 2016, 15% of FOX ESS staff are engineers with a core R\u0026amp;D center base in Shang Hai. FOX ESS has developed a wide range of energy storage products and services that cater to the needs of various industries, including residential-use, utilities, commercial and industrial customers. \u003cmeta charset=\"utf-8\"\u003eFOX ESS is committed to delivering innovative, reliable, and cost-effective energy storage solutions that meet the evolving needs of the energy market. With a global team of experienced engineers and energy experts, the primary markets of  FOX ESS include Germany, Italy, the UK, Brazil, Poland, and the US. \u003c\/span\u003e\u003c\/p\u003e","brand":"Fox ESS","offers":[{"title":"Default Title","offer_id":51963778957587,"sku":"S-FOXCS4000-US","price":1474.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/6501\/9155\/files\/CS4000_7e1551f3-c736-47f4-85a7-214e33fcee00.jpg?v=1750862992","url":"https:\/\/www.self2solar.com\/products\/fox-ess-ecs-cs4000-4kwh","provider":"self2solar","version":"1.0","type":"link"}