{"product_id":"eg4-280ah-all-weather-flexboss18-ess","title":"EG4 280Ah All Weather + FLEXBOSS18 (ESS)","description":"\u003ch2 style=\"text-align: center;\" class=\"product_title entry-title\"\u003e\u003cspan style=\"color: rgb(50, 149, 66);\"\u003e\u003cstrong\u003eEG4 WallMount All Weather \u0026amp; EG4 FlexBOSS18 Hybrid Inverter (ESS) | 14.3–85.8kWh | UL9540 | Grid-Tied Home Solar System (18kW-54kW PV)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 class=\"content__summary-title\"\u003e\u003cstrong\u003eProduct Summary:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp data-start=\"194\" data-end=\"565\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"203\" data-end=\"264\"\u003eEG4 280Ah All-Weather Battery + EG4 FlexBOSS18 ESS System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a resilient, high-performance energy solution designed for both\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"332\" data-end=\"369\"\u003eon-grid and off-grid applications\u003c\/strong\u003e. Combining the rugged\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"392\" data-end=\"435\"\u003e14.3kWh EG4 All-Weather LiFePO₄ battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith the powerful\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"454\" data-end=\"484\"\u003eFlexBOSS18 hybrid inverter\u003c\/strong\u003e, this system delivers reliable, scalable, and intelligent energy management for residential and commercial use.\u003c\/p\u003e\n\u003cdiv class=\"bb-see-more\" id=\"bb-see-more-1\"\u003e\n\u003cdiv class=\"bb-see-more-content\"\u003e\n\u003cp data-start=\"567\" data-end=\"956\"\u003eThe FlexBOSS18 provides up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"628\" data-end=\"648\"\u003e18,000W PV input\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith dual MPPTs and\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"669\" data-end=\"700\"\u003e120\/240V split-phase output\u003c\/strong\u003e, enabling flexible system design and strong performance. Paired with the durable All-Weather battery-featuring\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"812\" data-end=\"838\"\u003e200A continuous output\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"840\" data-end=\"861\"\u003e8,000+ cycle life\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"863\" data-end=\"890\"\u003eintegrated self-heating\u003c\/strong\u003e, and advanced safety protections – this system is built to perform in demanding environments.\u003c\/p\u003e\n\u003cp data-start=\"958\" data-end=\"1195\"\u003eDesigned with \u003cstrong data-start=\"793\" data-end=\"829\"\u003eUL 9540 certified configurations\u003c\/strong\u003e, advanced battery management, and \u003cstrong data-start=\"864\" data-end=\"894\"\u003eU.S.-engineered components\u003c\/strong\u003e, this system ensures safe, maintenance-free performance with seamless closed-loop communication between battery and inverter.\u003c\/p\u003e\n\u003cp data-start=\"1197\" data-end=\"1334\"\u003e\u003cstrong data-start=\"1219\" data-end=\"1234\"\u003eShips From:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTexas, USA\u003cbr data-start=\"1250\" data-end=\"1253\"\u003e\u003cstrong data-start=\"1253\" data-end=\"1266\"\u003eWarranty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e10 Years (Battery), 10 Years (Inverter)\u003cbr data-start=\"1285\" data-end=\"1288\"\u003e\u003cstrong data-start=\"1288\" data-end=\"1300\"\u003eSupport:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLifetime USA-Based Tech Support\u003c\/p\u003e\n\u003ch3 data-section-id=\"18fxkdn\" data-start=\"1341\" data-end=\"1361\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1344\" data-end=\"1361\"\u003eCompatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1363\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1363\" data-end=\"1397\"\u003eIntegrated \u0026amp; Optimized System:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1398\" data-end=\"1464\"\u003e\n\u003cli data-section-id=\"1ffne8j\" data-start=\"1398\" data-end=\"1464\"\u003eEG4 280Ah All-Weather Battery + EG4 FlexBOSS18 Hybrid Inverter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1466\" data-end=\"1492\"\u003e\u003cstrong data-start=\"1466\" data-end=\"1492\"\u003eExpandable \u0026amp; Flexible:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1493\" data-end=\"1670\"\u003e\n\u003cli data-section-id=\"x9d47h\" data-start=\"1493\" data-end=\"1552\"\u003eAdd additional batteries for increased storage capacity\u003c\/li\u003e\n\u003cli data-section-id=\"r3gs9b\" data-start=\"1553\" data-end=\"1611\"\u003eSupports grid-tied, hybrid, and off-grid installations\u003c\/li\u003e\n\u003cli data-section-id=\"1fxt2gy\" data-start=\"1612\" data-end=\"1670\"\u003eCompatible with solar + generator input configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1323\" data-end=\"1357\"\u003e\u003cstrong data-start=\"1637\" data-end=\"1653\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1655\" data-end=\"2670\"\u003e\n\u003cli data-section-id=\"1eja3v9\" data-start=\"1698\" data-end=\"1792\"\u003e\n\u003cstrong data-start=\"1700\" data-end=\"1725\"\u003eComplete ESS Solution\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Battery + inverter system designed to work seamlessly together\u003c\/li\u003e\n\u003cli data-section-id=\"s06k6u\" data-start=\"1793\" data-end=\"1867\"\u003e\n\u003cstrong data-start=\"1795\" data-end=\"1815\"\u003e18,000W PV Input\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– High solar capacity with dual MPPT optimization\u003c\/li\u003e\n\u003cli data-section-id=\"d8y4kk\" data-start=\"1868\" data-end=\"1957\"\u003e\n\u003cstrong data-start=\"1870\" data-end=\"1901\"\u003e120\/240V Split-Phase Output\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Reliable power for residential and commercial loads\u003c\/li\u003e\n\u003cli data-section-id=\"834tri\" data-start=\"1958\" data-end=\"2029\"\u003e\n\u003cstrong data-start=\"1960\" data-end=\"1987\"\u003e14.3kWh LiFePO₄ Battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Durable, high-capacity energy storage\u003c\/li\u003e\n\u003cli data-section-id=\"1vwd9l6\" data-start=\"2030\" data-end=\"2115\"\u003e\n\u003cstrong data-start=\"2032\" data-end=\"2058\"\u003e200A Continuous Output\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Supports high-demand appliances and critical systems\u003c\/li\u003e\n\u003cli data-section-id=\"1gzfbpc\" data-start=\"2116\" data-end=\"2179\"\u003e\n\u003cstrong data-start=\"2118\" data-end=\"2139\"\u003e8,000+ Cycle Life\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Long-lasting performance at 80% DoD\u003c\/li\u003e\n\u003cli data-section-id=\"ubmgbz\" data-start=\"2180\" data-end=\"2256\"\u003e\n\u003cstrong data-start=\"2182\" data-end=\"2204\"\u003eAll-Weather Design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Built for reliable indoor and outdoor operation\u003c\/li\u003e\n\u003cli data-section-id=\"1m9zi26\" data-start=\"2257\" data-end=\"2328\"\u003e\n\u003cstrong data-start=\"2259\" data-end=\"2286\"\u003eIntegrated Self-Heating\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Reliable performance in cold climates\u003c\/li\u003e\n\u003cli data-section-id=\"av16tp\" data-start=\"2329\" data-end=\"2441\"\u003e\n\u003cstrong data-start=\"2331\" data-end=\"2368\"\u003eAdvanced BMS \u0026amp; Safety Protections\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Includes EMP protection, fire safety features, and system safeguards\u003c\/li\u003e\n\u003cli data-section-id=\"1kgcrz\" data-start=\"2442\" data-end=\"2537\"\u003e\n\u003cstrong data-start=\"2444\" data-end=\"2471\"\u003eSmart Energy Management\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Supports load control, AC coupling, and generator integration\u003c\/li\u003e\n\u003cli data-section-id=\"j0kfpo\" data-start=\"2538\" data-end=\"2612\"\u003e\n\u003cstrong data-start=\"2540\" data-end=\"2570\"\u003eRemote Monitoring \u0026amp; Alerts\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Real-time system tracking and control\u003c\/li\u003e\n\u003cli data-section-id=\"1ph7tfo\" data-start=\"2613\" data-end=\"2679\"\u003e\n\u003cstrong data-start=\"2615\" data-end=\"2645\"\u003eMaintenance-Free Operation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– No routine servicing required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edurable, flexible energy storage\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esystem built for resilience, performance, and long-term energy independence.\u003c\/p\u003e\n\u003ch3 class=\"bb-justify-between\"\u003e\u003cstrong\u003eItems Included- Quantity depends on your ESS Configuration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"bb-items-included-frontend\"\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\n\u003cspan class=\"bb-item-title\"\u003eEG4 WallMount 280Ah All Weather | 48V - 14.3kWh | UL1973 | Home Battery Backup LFP\u003c\/span\u003e\u003cspan class=\"bb-item-sku\"\u003eF\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\u003cspan class=\"bb-item-title\"\u003eEG4 All Weather Conduit Box\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bb-item-frontend\"\u003e\n\u003cdiv class=\"bb-item-info\"\u003e\u003cspan class=\"bb-item-title\"\u003eEG4 FlexBOSS18 Hybrid Solar Inverter | 18kW PV \/ 13kW AC | Split-Phase | 3-MPPT | Scalable | Remote Wi-Fi Monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5 class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt;\"\u003eDownloads \u0026amp; Specifications\u003c\/span\u003e\u003c\/b\u003e\u003c\/h5\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18.0pt;\"\u003eBattery Specifications\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal Voltage:\u003c\/b\u003e51.2V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eChemistry:Lithium\u003c\/b\u003e Iron Phosphate (LiFePO4)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ekWh Capacity:\u003c\/b\u003e14.3kWh\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eAh Capacity:\u003c\/b\u003e280Ah\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eBMS Charging Voltage (Bulk\/Absorb)\u003c\/b\u003e:56.0V (±0.8V)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRec. Charging Voltage (Bulk\/Absorb)\u003c\/b\u003e:56.2V (±0.2V)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRec. Float Setting:\u003c\/b\u003e54V (±0.2V)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRec. SoC Cutoff Setting:\u003c\/b\u003e20%\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Continuous Charge Current:\u003c\/b\u003e140A\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Continuous Discharge Current:\u003c\/b\u003e140A (200A Max. Continuous for 30 min)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRec. Charge Current:\u003c\/b\u003e60 – 140A\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRec. Discharge Current:\u003c\/b\u003e60 – 140A\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax Continuous Discharge Rate:\u003c\/b\u003e10,240W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eVoltage:\u003c\/b\u003e56V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePower Consumption:\u003c\/b\u003e224W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eInternal Temperature Cutoffs:\u003c\/b\u003e≤32ºF (On) | ≥41ºF (Off)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eCharging Temperature Range:\u003c\/b\u003e32ºF – 122ºF (0ºC – 50ºC)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eDischarging Temperature Range:\u003c\/b\u003e-4ºF – 131ºF (-20ºC – 55ºC)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eStorage Temperature Range:\u003c\/b\u003e32ºF – 113ºF (0ºC – 45ºC)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOperating Altitude\u003c\/b\u003e:\u0026lt;16,404 ft (\u0026lt;5,000 m)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eProtection Rating:\u003c\/b\u003eIP65\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eCommunications:\u003c\/b\u003eRS485 | CANBus\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eWeight:\u003c\/b\u003e308.6 lbs (140 kg)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eDepth:\u003c\/b\u003e9.1 in (232 mm)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eWidth:\u003c\/b\u003e22.3 in (566 mm)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eHeight:\u003c\/b\u003e36.1 in (916 mm)\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 3.75pt; mso-line-height-alt: 15.6pt; mso-outline-level: 1; background: white;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18.0pt; font-family: 'Inter',serif; color: #165ea0; mso-font-kerning: 18.0pt;\"\u003eEG4 FlexBOSS18 Hybrid Inverter (ESS) \u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 18.0pt;\"\u003eInverter Specifications\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal AC Voltage:\u003c\/b\u003e120\/240VAC | 120\/208VAC (L1\/L2\/N required)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eFrequency:\u003c\/b\u003e60 Hz (Default) | 50 Hz\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. AC Current:\u003c\/b\u003e54A @ 240V | 54A @ 208V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. AC Input Power:\u003c\/b\u003e13000W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. AC Bypass:\u003c\/b\u003e90A\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOperating Voltage Range:\u003c\/b\u003e180 – 270VAC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOutput Voltage\u003c\/b\u003e:120\/240VAC | 120\/208VAC (L1\/L2\/N required)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Output Current:\u003c\/b\u003e66.7A\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOutput Frequency:\u003c\/b\u003e60 Hz (Default) | 50 Hz\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal Output Power (without PV):\u003c\/b\u003e12000W @ 240V | 12000W @ 208V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal Output Power (with PV):\u003c\/b\u003e16000W @ 240V | 13800kW @ 208V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePower Factor:\u003c\/b\u003e0.99 (Full Load)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eReactive Power Adjustment Range:\u003c\/b\u003e-0.8 – 0.8 Leading Adjustable\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTotal Harmonic Distortion:\u003c\/b\u003e\u0026lt;5% (Full Load)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTransfer Time:\u003c\/b\u003e20ms (Default) | 10ms (Configurable) | 20ms (Parallel)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRated Output Current:\u003c\/b\u003e50A @ 240V | 57.7A @ 208V\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal Output Voltage:\u003c\/b\u003e120\/240VAC | 120\/208VAC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRated Output Power:\u003c\/b\u003e12000W @ 240VAC | 12000W @ 208VAC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePeak Power:\u003c\/b\u003e20000W (0.5 sec) | 15000W (1 sec)\u003cbr\u003e12500W (6 min) | 11000W (12 min)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOperating Frequency:\u003c\/b\u003e60 Hz (Default) | 50 Hz\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTotal Harmonic Distortion Voltage:\u003c\/b\u003e\u0026lt;5%\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNo. of MPPTs:\u003c\/b\u003e2\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eInputs per MPPT:\u003c\/b\u003e2 (MPPT 1) | 2 (MPPT 2)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Usable Input Current:\u003c\/b\u003e26A (MPPT 1) | 26A (MPPT 2)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Short Circuit Input Current:\u003c\/b\u003e31A (MPPT 1) | 31A (MPPT 2)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eDC Input Voltage Range:\u003c\/b\u003e100 – 600VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eUnit Start-Up Voltage:\u003c\/b\u003e200VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMPPT Operating Voltage Range:\u003c\/b\u003e120 – 440VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal MPPT Voltage:\u003c\/b\u003e360VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Utilized PV Array Power:\u003c\/b\u003e18000W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Recommended PV Input:\u003c\/b\u003e18000W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Efficiency:\u003c\/b\u003e97.5% (PV to Grid) | 94.5% (PV to Battery) | 94% (Battery to Grid)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eIdle Consumption:\u003c\/b\u003e\u0026lt;65W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eNominal Voltage:\u003c\/b\u003e48VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eVoltage Range:\u003c\/b\u003e40 – 60VDC\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Charge \/ Discharge Power:\u003c\/b\u003e10000W\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRecommended Battery Capacity per Inverter:\u003c\/b\u003e\u0026gt;300Ah\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOperating \/ Storage Temperature Range:\u003c\/b\u003e-13ºF – 140ºF (-25ºC – 60ºC)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOperating Altitude:\u003c\/b\u003e\u0026lt;6,561 ft (2000 m)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eRelative Humidity:\u003c\/b\u003e0 – 100%\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTypical Noise Emission:\u003c\/b\u003e\u0026lt;50dB @ 3 ft\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eDesign Topology:\u003c\/b\u003eHigh-Frequency \/ Transformerless\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eProtection Rating:\u003c\/b\u003eIP65 \/ NEMA 4X\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eCommunications:\u003c\/b\u003eRS485 \/ CANBus \/ WiFi \/ 4G\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eMax. Parallel Connections:\u003c\/b\u003e10\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eWeight:\u003c\/b\u003e115 lbs (52 kg)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eDepth:\u003c\/b\u003e11.2 in (287 mm)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eWidth:\u003c\/b\u003e22.8 in (567 mm)\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eHeight:\u003c\/b\u003e30.5 in (775 mm)\u003c\/p\u003e\n\u003cdiv class=\"table-header\"\u003e\n\u003ch2\u003eBattery Downloads\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-body\"\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSKU#:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eK0102\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSpec Sheet:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4-14.3kWh-PowerPro-WallMount-AW-Spec-Sheet.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUser Manual:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4-14.3kWh-PowerPro-WallMount-AW-Manual.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUL9540A Certificate:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4-LL-WallMount-280Ah-UL9540A-Test-Verification.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUL1973 Certificate:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4%C2%AE-14.3kWh-PowerPro-WallMount-UL1973-Certificate-Of-Compliance.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eQuick Start Guide:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2024\/08\/EG4%C2%AE-14.3kWh-WallMount-AW-Quick-Start-Guide.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCEC Listing- EG4 WallMount All Weather:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/solarequipment.energy.ca.gov\/Home\/EnergyStorage?ManufacturerID=EG4+Electronics+LLC\u0026amp;amp;ModelNameID=-1\u0026amp;amp;Submit=Search\u0026amp;amp;Rows=25\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Go to link\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/gotolink.png\" decoding=\"async\"\u003eGO TO LINK\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"table-header\"\u003e\n\u003ch2\u003eInverter Downloads\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-body\"\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSKU#:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eK0102\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSpec Sheet:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/05\/EG4-FlexBOSS18-Hybrid-Inverter-Spec-Sheet.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUser Manual:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/05\/EG4-FlexBOSS18-Hybrid-Inverter-User-Manual.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUL1741 Certificate:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/05\/EG4-FlexBOSS18-UL-1741-Certificate-of-Compliance.pdf\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Download\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" decoding=\"async\"\u003eDOWNLOAD\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCEC Listing- EG4 FlexBoss18:\u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/solarequipment.energy.ca.gov\/Home\/EnergyStorage?ManufacturerID=EG4+Electronics+LLC\u0026amp;amp;ModelNameID=-1\u0026amp;amp;Submit=Search\u0026amp;amp;Rows=25\" class=\"download-btn\" target=\"_blank\"\u003e\u003cimg alt=\"Go to link\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/gotolink.png\" decoding=\"async\"\u003eGO TO LINK\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3 class=\"table-row\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eEG4 FlexBoss18 Inverter:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10-Year\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEG4 Manufacturer Warranty\u003c\/p\u003e\n\u003cp\u003eEG4 All Weather Battery:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10-Year\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEG4 Manufacturer Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1x FlexBOSS18 + 1x All Weather","offer_id":48628055376118,"sku":"K0102","price":6865.0,"currency_code":"USD","in_stock":true},{"title":"1x FlexBOSS18 + 2x All Weather","offer_id":50446314569974,"sku":"K0103","price":10730.0,"currency_code":"USD","in_stock":true},{"title":"1x FlexBOSS18 + 3x All Weather","offer_id":50446314602742,"sku":"K0116","price":14595.0,"currency_code":"USD","in_stock":true},{"title":"2x FlexBOSS18 + 4x All Weather","offer_id":50446314635510,"sku":"K0117","price":21665.0,"currency_code":"USD","in_stock":true},{"title":"3x FlexBOSS18 + 6x All Weather","offer_id":50446314668278,"sku":"K0129","price":32595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3738\/7254\/files\/Main-5-1.webp?v=1776309596","url":"https:\/\/ecopowerit.com\/products\/eg4-280ah-all-weather-flexboss18-ess","provider":"EcoPowerit","version":"1.0","type":"link"}