{"product_id":"1x-flexboss21-3x-ethos","title":"3x ETHOS + EG4 FLEXBOSS21 ESS Off-Grid System","description":"\u003cp class=\"content__summary-title\"\u003e\u003cstrong\u003eProduct Summary:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003eThe \u003cb\u003eBigBattery ETHOS + EG4 FlexBOSS21\u003c\/b\u003e system pairs modular, UL-certified 48V lithium storage with a next-generation hybrid inverter for a complete, future-ready energy solution. \u003cb\u003eETHOS\u003c\/b\u003e provides scalable capacity, intelligent management, and a \u003cb\u003e12-year warranty\u003c\/b\u003e for long-lasting, maintenance-free energy independence, while \u003cb\u003eFlexBOSS21\u003c\/b\u003edelivers \u003cb\u003e12kW output\u003c\/b\u003e and up to \u003cb\u003e21,000W of PV input\u003c\/b\u003e with 3 MPPTs, 90A grid feed-through at 120\/240VAC, and seamless integration with the EG4 GridBOSS MID gateway for smart load management, AC coupling, and generator support. With built-in rapid shutdown, ground fault and arc fault protection, plus Wi-Fi monitoring and mobile alerts, this combo offers safe, efficient, and highly flexible power for modern on-grid or off-grid residential and commercial systems.\u003c\/p\u003e\n\u003cp class=\"bb-justify-between\"\u003e\u003cstrong\u003eItems Included SKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"bb-items-included-frontend\"\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cimg src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/ETHOS-Stackable-Type-Module-150x150.png\" alt=\"BigBattery ETHOS | 48V - 5.1kWh | UL1973 | Home Battery Backup LFP\" class=\"bb-item-img\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\n\u003cspan class=\"bb-item-qty\"\u003e3x\u003c\/span\u003e\u003cspan class=\"bb-item-title\"\u003eBigBattery ETHOS | 48V - 5.1kWh | UL1973 | Home Battery Backup LFP\u003c\/span\u003e\u003cspan class=\"bb-item-sku\"\u003eFETHS-48051-G1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cimg src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/ETHOS-Battery-Junction-Box-150x150.png\" alt=\"ETHOS Control Box\" class=\"bb-item-img\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\n\u003cspan class=\"bb-item-qty\"\u003e1x\u003c\/span\u003e\u003cspan class=\"bb-item-title\"\u003eETHOS Control Box\u003c\/span\u003e\u003cspan class=\"bb-item-sku\"\u003eCNT060\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cimg src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/11\/EG4_FlexBOSS_21_Front-150x150.png\" alt=\"EG4 FlexBOSS21 Hybrid Solar Inverter | 21kW PV \/ 16kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring\" class=\"bb-item-img\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\n\u003cspan class=\"bb-item-qty\"\u003e1x\u003c\/span\u003e\u003cspan class=\"bb-item-title\"\u003eEG4 FlexBOSS21 Hybrid Solar Inverter | 21kW PV \/ 16kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring\u003c\/span\u003e\u003cspan class=\"bb-item-sku\"\u003eINV027\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cimg src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2023\/11\/Ethos-Controller-Cables-1220mm-150x150.png\" alt=\"15kWh Ethos Controller to Battery Power Cable 4ft (1220mm)\" class=\"bb-item-img\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\n\u003cspan class=\"bb-item-qty\"\u003e1x\u003c\/span\u003e\u003cspan class=\"bb-item-title\"\u003e15kWh Ethos Controller to Battery Power Cable 4ft (1220mm)\u003c\/span\u003e\u003cspan class=\"bb-item-sku\"\u003eCBL091\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Big Battery","offers":[{"title":"Default Title","offer_id":45171958284342,"sku":"K0242","price":7975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/1275\/7558\/files\/215-3.png?v=1774626951","url":"https:\/\/stellarstarsolarsolutions.com\/products\/1x-flexboss21-3x-ethos","provider":"Stellar Star Solar Solutions","version":"1.0","type":"link"}