{"product_id":"eg4-wallmount-all-weather-battery-flexboss21-hybrid-inverter-ess-14-3-85-8kwh-ul9540-grid-tied-home-solar-system-21kw-63kw-pv","title":"EG4 Wallmount All Weather Battery \u0026 FlexBoss21 Hybrid Inverter (ESS) | 14.3-85.8kWh | UL9540 | Grid-Tied Home Solar System (21kW-63kW PV)","description":"\u003csection style=\"font-family: 'Roboto', sans-serif; color: #121212; line-height: 1.6; width: 100%; max-width: 600px; padding: 16px; margin: 0 auto; box-sizing: border-box; overflow-x: hidden;\"\u003e\u003c!-- Product Title --\u003e\n\u003ch1 style=\"color: rgb(19, 49, 175); font-weight: 600; font-size: 24px; margin-bottom: 10px; line-height: 1.2;\"\u003eEG4 280Ah All-Weather Battery + FlexBOSS21 ESS System | 14.3kWh LiFePO₄ Battery | 21kW PV Input | 12kW Hybrid Inverter\u003c\/h1\u003e\n\u003c!-- Product Subtitle --\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 12px; line-height: 1.4;\"\u003eComplete Hybrid Energy Storage System with 14.3kWh All-Weather Battery, FlexBOSS21 Inverter \u0026amp; Advanced Solar Energy Management\u003c\/p\u003e\n\u003c!-- Product Description --\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 16px; line-height: 1.5;\"\u003eThe EG4 280Ah All-Weather Battery + FlexBOSS21 ESS System is a high-performance energy storage solution engineered for residential, commercial, hybrid, and off-grid applications. Combining the rugged 14.3kWh EG4 All-Weather LiFePO₄ battery with the powerful FlexBOSS21 hybrid inverter, this integrated system delivers dependable backup power, intelligent energy management, and exceptional solar harvesting capabilities. Featuring up to 21,000W of PV input capacity, 12kW continuous output, three MPPT inputs, and seamless closed-loop communication between battery and inverter, this system is designed to maximize energy independence while providing reliable, maintenance-free operation in demanding environments.\u003c\/p\u003e\n\u003c!-- Key Features --\u003e\n\u003ch4 style=\"color: #121212; font-weight: 600; font-size: 16px; margin-bottom: 8px;\"\u003eKey Features:\u003c\/h4\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 16px; font-size: 14px; color: #121212; list-style-type: disc;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eComplete ESS Solution:\u003c\/strong\u003e Fully integrated battery and inverter package engineered for seamless performance and simplified installation.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e21,000W Solar Input Capacity:\u003c\/strong\u003e Supports large solar arrays with three MPPTs for maximum energy production.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e12kW Continuous Output Power:\u003c\/strong\u003e Delivers reliable energy for whole-home backup and light commercial applications.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e14.3kWh LiFePO₄ Battery Storage:\u003c\/strong\u003e High-capacity lithium iron phosphate battery provides dependable long-term energy storage.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eThree Independent MPPT Inputs:\u003c\/strong\u003e Optimizes solar harvesting across multiple PV arrays and roof orientations.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e8,000+ Cycle Life:\u003c\/strong\u003e Designed for years of reliable operation at 80% depth of discharge.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eAll-Weather Battery Design:\u003c\/strong\u003e Built for reliable indoor and outdoor operation in harsh environmental conditions.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eIntegrated Self-Heating Technology:\u003c\/strong\u003e Maintains charging performance and battery reliability in cold climates.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eAdvanced BMS \u0026amp; Safety Features:\u003c\/strong\u003e Includes battery protection, EMP protection, fire safety measures, and system safeguards.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eSmart Energy Management:\u003c\/strong\u003e Supports load control, AC coupling, generator integration, and intelligent power optimization.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eRemote Monitoring \u0026amp; Alerts:\u003c\/strong\u003e Provides real-time system visibility, performance tracking, and remote control capabilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-Free Operation:\u003c\/strong\u003e Designed for long-term performance without routine servicing requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Technical Specifications --\u003e\n\u003ch4 style=\"color: #121212; font-weight: 600; font-size: 16px; margin-bottom: 8px;\"\u003eIdeal Applications:\u003c\/h4\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 16px; font-size: 14px; color: #121212; list-style-type: disc;\"\u003e\n\u003cli\u003eWhole-home backup power systems\u003c\/li\u003e\n\u003cli\u003eResidential solar energy storage\u003c\/li\u003e\n\u003cli\u003eCommercial and light commercial energy systems\u003c\/li\u003e\n\u003cli\u003eOff-grid homes and remote properties\u003c\/li\u003e\n\u003cli\u003eHybrid solar and battery installations\u003c\/li\u003e\n\u003cli\u003eGenerator-assisted backup power systems\u003c\/li\u003e\n\u003cli\u003ePeak shaving and utility cost reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- What’s Included --\u003e\n\u003ch4 style=\"color: #121212; font-weight: 600; font-size: 16px; margin-bottom: 8px;\"\u003eWhat’s Included:\u003c\/h4\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 0; font-size: 14px; color: #121212; list-style-type: disc;\"\u003e\n\u003cli\u003e1 × EG4 280Ah All-Weather LiFePO₄ Battery (14.3kWh)\u003c\/li\u003e\n\u003cli\u003e1 × EG4 FlexBOSS21 Hybrid Inverter\u003c\/li\u003e\n\u003cli\u003eBattery-to-Inverter Communication Components\u003c\/li\u003e\n\u003cli\u003eMonitoring \u0026amp; Connectivity Interfaces\u003c\/li\u003e\n\u003cli\u003eUser Manuals \u0026amp; Installation Documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"EG4","offers":[{"title":"Default Title","offer_id":63712762560881,"sku":"K0100","price":6893.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/1272\/3057\/files\/Screenshot2026-05-30at16.32.58.png?v=1780180414","url":"https:\/\/ecogridsupply.com\/products\/eg4-wallmount-all-weather-battery-flexboss21-hybrid-inverter-ess-14-3-85-8kwh-ul9540-grid-tied-home-solar-system-21kw-63kw-pv","provider":"Eco Grid Supply","version":"1.0","type":"link"}