{"product_id":"bigbattery-ethos-energy-storage-system-with-eg4-18kpv-hybrid-inverter-10-24-46-1kwh","title":"BigBattery ETHOS Energy Storage System with EG4 18kPV Hybrid Inverter (2 Modules)","description":"\u003cp data-start=\"280\" data-end=\"913\"\u003eThe \u003cstrong data-start=\"284\" data-end=\"332\"\u003eBigBattery ETHOS Energy Storage System (ESS)\u003c\/strong\u003e combines the powerful \u003cstrong data-start=\"355\" data-end=\"389\"\u003eETHOS lithium battery platform\u003c\/strong\u003e with the \u003cstrong data-start=\"399\" data-end=\"428\"\u003eEG4 18kPV hybrid inverter\u003c\/strong\u003e to create a scalable home energy storage solution. Designed for grid-tied and hybrid solar systems, this ESS provides \u003cstrong data-start=\"547\" data-end=\"606\"\u003e12kW continuous AC output and up to 18kW solar PV input\u003c\/strong\u003e, enabling homeowners to maximize solar production while maintaining reliable backup power. Built with \u003cstrong data-start=\"709\" data-end=\"778\"\u003eLiFePO4 battery chemistry and advanced battery management systems\u003c\/strong\u003e, the ETHOS system delivers safe, long-lasting performance for residential solar installations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"915\" data-end=\"1542\"\u003eThis modular energy storage system starts at \u003cstrong data-start=\"960\" data-end=\"1001\"\u003e10.24kWh capacity (2 battery modules)\u003c\/strong\u003e and can expand up to \u003cstrong data-start=\"1023\" data-end=\"1042\"\u003e46.1kWh or more\u003c\/strong\u003e, making it ideal for growing solar systems and increasing energy demands. Certified to \u003cstrong data-start=\"1130\" data-end=\"1178\"\u003eUL9540, UL9540A, and UL1973 safety standards\u003c\/strong\u003e, the ETHOS ESS ensures reliable grid-tied operation while allowing integration with modern hybrid inverters and solar arrays. With scalable battery expansion, high-efficiency power conversion, and advanced monitoring capabilities, the ETHOS ESS provides an efficient solution for whole-home backup and solar energy storage.\u003c\/p\u003e\n\u003ch3 data-end=\"3846\" data-start=\"3829\" data-section-id=\"1m8mqxq\"\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"13g85eo\" data-start=\"4064\" data-end=\"4103\"\u003e(1) EG4 18kPV Hybrid Solar Inverter\u003c\/li\u003e\n\u003cli data-section-id=\"16irdog\" data-start=\"4104\" data-end=\"4162\"\u003eETHOS Lithium Battery Modules (2 Modules)\u003c\/li\u003e\n\u003cli data-section-id=\"1a7szlr\" data-start=\"4163\" data-end=\"4184\"\u003eETHOS Control Box\u003c\/li\u003e\n\u003cli data-section-id=\"nskd9f\" data-start=\"4185\" data-end=\"4204\"\u003eETHOS Rack Base\u003c\/li\u003e\n\u003cli data-section-id=\"k3erk6\" data-start=\"4205\" data-end=\"4239\"\u003eCommunication and power cables\u003c\/li\u003e\n\u003cli data-section-id=\"l67ad5\" data-start=\"4240\" data-end=\"4322\"\u003eInstallation documentation and manuals\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eBigBattery ETHOS Energy Storage System (ESS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Chemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Voltage\u003c\/td\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Battery Voltage\u003c\/td\u003e\n\u003ctd\u003e51.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Capacity\u003c\/td\u003e\n\u003ctd\u003e10.24kWh (2 modules)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpandable Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 46.1kWh+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Capacity\u003c\/td\u003e\n\u003ctd\u003e200Ah per system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Discharge\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Power\u003c\/td\u003e\n\u003ctd\u003e10,240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Discharge Current\u003c\/td\u003e\n\u003ctd\u003e300A (5 sec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e48 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Voltage Range\u003c\/td\u003e\n\u003ctd\u003e55.6 – 57V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Communication\u003c\/td\u003e\n\u003ctd\u003eCANBus \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Protection\u003c\/td\u003e\n\u003ctd\u003eIP65 \/ NEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Weight\u003c\/td\u003e\n\u003ctd\u003e273 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Dimensions\u003c\/td\u003e\n\u003ctd\u003e43.3 × 26.5 × 6.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInverter Model\u003c\/td\u003e\n\u003ctd\u003eEG4 18kPV Hybrid Inverter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInverter Output Power\u003c\/td\u003e\n\u003ctd\u003e12kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Solar PV Input\u003c\/td\u003e\n\u003ctd\u003e18kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Output Voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240V Split Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPPT Trackers\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Input Voltage Range\u003c\/td\u003e\n\u003ctd\u003e100 – 600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransfer Time\u003c\/td\u003e\n\u003ctd\u003e10–20 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eRS485, CANBus, Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL9540, UL9540A, UL1973, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 Years (Battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEG4 WallMount Indoor Battery: 10-Year EG4 Manufacturer Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/ETHOS-NEW-SpecSheet-1.5-BatteryCB.pdf?v=1773300964\" target=\"_blank\"\u003e\u003cspan\u003eSpec Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/White-Cover-ETHOS-BATTERY-USER-MANUAL-4.pdf?v=1773300968\" target=\"_blank\"\u003e\u003cspan\u003eUser Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/SDS_BigBattery_LFP-1.pdf?v=1773301002\" target=\"_blank\"\u003e\u003cspan\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/UL9540A-Certificate-1.pdf?v=1773301116\" target=\"_blank\"\u003e\u003cspan\u003eUL9540A Certificate\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/UL1973-ETHOS.pdf?v=1773301133\" target=\"_blank\"\u003e\u003cspan\u003eUL1973 Certificate\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/48V-ETHOS-DOC-UN38.3.pdf?v=1773301182\"\u003e\u003cspan\u003eUN38.3 Certificate\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInverter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/EG4-18KPV-12LV-Spec-Sheet.pdf?v=1773413842\" target=\"_blank\"\u003e\u003cspan\u003eSpec Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/EG4-18KPV-12LV-Manual-1.pdf?v=1773413884\" target=\"_blank\"\u003e\u003cspan\u003eUser Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/EG4-18KPV-12LV-Certification.pdf?v=1773413860\" target=\"_blank\"\u003e\u003cspan\u003eUL 1741 Certificate\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/RSD-Initiator-Install-Instructions-EG4-18kPV-Version-1-External.pdf?v=1773413904\" target=\"_blank\"\u003e\u003cspan\u003eRapid Shut Down Wiring Guide\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":47651876503764,"sku":"K0954","price":7975.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/0822\/9588\/files\/10-kWh-x2-Batteries-KIT0954-V2.png?v=1773547978","url":"https:\/\/sitereadysupply.com\/products\/bigbattery-ethos-energy-storage-system-with-eg4-18kpv-hybrid-inverter-10-24-46-1kwh","provider":"Site Ready Supply","version":"1.0","type":"link"}