{"product_id":"bigbattery-eg4-wallmount-280ah-all-weather-48v-14-3kwh-ul1973-home-battery-backup-lfp","title":"BigBattery EG4 WallMount 280Ah All Weather | 48V – 14.3kWh | UL1973 | Home Battery Backup LFP","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThis wall-mounted lithium iron phosphate battery provides 14.3kWh of storage and 280Ah capacity for residential solar, off-grid, and home backup systems. Its weather-resistant construction supports indoor and outdoor installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIntegrated self-heating supports cold-weather use, while a battery management system monitors voltage, current, and temperature. EMP protection, dual fire arrestors, and an emergency stop provide additional safeguards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQuick-connect terminals simplify connections, and an LCD displays battery status and diagnostics. The battery offers 8,000+ cycles at 80% depth of discharge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"width: 100%; margin: 15px 0;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/taDVE1g8Qi4\" title=\"Product Video\" style=\"display: block; width: 100%; aspect-ratio: 16\/9; border: 0; border-radius: 10px; box-shadow: 0 3px 10px #0002;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"true\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeather Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e IP65-rated construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCold-Weather Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Integrated self-heating.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBattery Monitoring:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e LCD with real-time BMS information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e EMP protection, dual fire arrestors, and emergency stop.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"true\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 51.2V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChemistry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lithium Iron Phosphate (LiFePO4)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEnergy Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 14.3kWh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCapacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 280Ah\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMS Charging Voltage (Bulk\/Absorb):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56.0V (±0.8V)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Charging Voltage (Bulk\/Absorb):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56.2V (±0.2V)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Float Setting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 54V (±0.2V)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended SoC Cutoff:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 20%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Continuous Charge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 140A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Continuous Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 140A; 200A for up to 30 minutes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Charge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 60–140A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 60–140A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Continuous Discharge Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10,240W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVoltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 224W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInternal Temperature Cutoffs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ≤32°F (On) | ≥41°F (Off)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCharging Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 32°F–122°F (0°C–50°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDischarging Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e -4°F–131°F (-20°C–55°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStorage Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 32°F–113°F (0°C–45°C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOperating Altitude:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u0026lt;16,404 ft (\u0026lt;5,000 m)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCommunications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e RS485 | CANBus\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSize Guide\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"true\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDepth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9.1 in (232 mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWidth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 22.3 in (566 mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 36.1 in (916 mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 308.6 lbs (140 kg)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUL 9540 Grid-Tied Systems with Closed-Loop Communication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e EG4 12kPV, 18kPV, FlexBoss18, and FlexBoss21.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOff-Grid Non-UL 9540 Installations with Closed-Loop Communication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e All BigBattery APEX inverters and all EG4 inverters.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1 battery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1 mounting bracket\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1 X bracket\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e6 expansion bolts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1 red \u0026amp; black battery-to-inverter power cable set (3.3 FT)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1 battery-to-inverter communication cable (5 FT)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWarranty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10-year EG4 manufacturer warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/1-1-scaled-1-e1788972864355_result.webp?v=1792820022\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/2b-xn_result.webp?v=1792820023\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/3b-xn_result.webp?v=1792820040\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/4b_result.webp?v=1792820041\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/5b_result.webp?v=1792820043\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #f0e6da; border-radius: 12px; padding: 20px; margin: 20px 0;\"\u003e\n\u003ch3 style=\"margin: 0 0 15px; color: #73243a;\"\u003eProduct Documents\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; gap: 10px; flex-wrap: wrap;\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/EG4-14.3kWh-PowerPro-WallMount-AW-Spec-Sheet.pdf?v=1792820223\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 9px 18px; border: 2px solid #f0e6da; border-radius: 30px; color: #73243a; text-decoration: none; font-weight: bold;\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/EG4-14.3kWh-PowerPro-WallMount-AW-Manual.pdf?v=1792820244\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 9px 18px; border: 2px solid #f0e6da; border-radius: 30px; color: #73243a; text-decoration: none; font-weight: bold;\" target=\"_blank\"\u003eUser Manual.\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/EG4-LL-WallMount-280Ah-UL9540A-Test-Verification.pdf?v=1792820245\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 9px 18px; border: 2px solid #f0e6da; border-radius: 30px; color: #73243a; text-decoration: none; font-weight: bold;\" target=\"_blank\"\u003eUL9540A Certificate\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/EG4_-14.3kWh-PowerPro-WallMount-UL1973-Certificate-Of-Compliance.pdf?v=1792820253\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 9px 18px; border: 2px solid #f0e6da; border-radius: 30px; color: #73243a; text-decoration: none; font-weight: bold;\" target=\"_blank\"\u003eUL1973 Certificate: \u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/EG4_-14.3kWh-WallMount-AW-Quick-Start-Guide.pdf?v=1792820260\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 9px 18px; border: 2px solid #f0e6da; border-radius: 30px; color: #73243a; text-decoration: none; font-weight: bold;\" target=\"_blank\"\u003eQuick Start Guide\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Big Battery","offers":[{"title":"Default Title","offer_id":67769591660707,"sku":"FEWPP-48143-G1","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/4127\/3251\/files\/3_4eb8c31f-60b1-450a-b68d-d8b53a7d6545.png?v=1792820035","url":"https:\/\/wildhavencurator.com\/products\/bigbattery-eg4-wallmount-280ah-all-weather-48v-14-3kwh-ul1973-home-battery-backup-lfp","provider":"Wildhaven Curator","version":"1.0","type":"link"}