{"product_id":"bigbattery-48v-15kwh-nexus-lifepo4-battery","title":"BigBattery 48V 15kWH NEXUS LiFePO4 Battery","description":"\u003ch2 style=\"text-align: center;\" class=\"Polaris-Text--root Polaris-Text--headingLg Polaris-Text--semibold Polaris-Text--base\" tabindex=\"-1\"\u003e\u003cspan style=\"color: rgb(50, 149, 66);\"\u003e\u003cstrong\u003eBigBattery 48V 15kWH NEXUS LiFePO4 Battery\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-end=\"570\" data-start=\"192\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"243\" data-start=\"196\"\u003eBigBattery NEXUS™ 48V 15kWh LiFePO₄ Battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a cost-effective, high-capacity energy storage solution designed for off-grid homes, cabins, and backup power systems. With a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"417\" data-start=\"373\"\u003ecompact, portable, floor-standing design\u003c\/strong\u003e, NEXUS delivers reliable, uninterrupted power while allowing flexible installation in garages, utility rooms, cabins, or sheds-without complex mounting.\u003c\/p\u003e\n\u003cdiv id=\"bb-see-more-1\" class=\"bb-see-more\"\u003e\n\u003cdiv class=\"bb-see-more-content\"\u003e\n\u003cp data-end=\"865\" data-start=\"572\"\u003ePowered by advanced\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"621\" data-start=\"592\"\u003eLiFePO₄ battery chemistry\u003c\/strong\u003e, NEXUS offers long service life, enhanced safety, and consistent performance. Built with an\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"760\" data-start=\"714\"\u003eintegrated Battery Management System (BMS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeaturing multiple layers of protection, it ensures dependable operation even in demanding environments.\u003c\/p\u003e\n\u003cp data-end=\"1206\" data-start=\"867\"\u003eEach unit includes a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"942\" data-start=\"888\"\u003eself-heating function for cold-weather performance\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"986\" data-start=\"947\"\u003eintegrated aerosol fire suppression\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor added safety. Expandable up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1032\" data-start=\"1022\"\u003e225kWh\u003c\/strong\u003e, NEXUS is ideal for off-grid solar systems, commercial backup power, and home emergency power applications where\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1193\" data-start=\"1146\"\u003eaffordability, scalability, and reliability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ematter most.\u003c\/p\u003e\n\u003cp data-end=\"1335\" data-start=\"1208\"\u003e\u003cstrong data-end=\"1245\" data-start=\"1230\"\u003eShips From:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTexas, USA\u003cbr data-end=\"1264\" data-start=\"1261\"\u003e\u003cstrong data-end=\"1277\" data-start=\"1264\"\u003eWarranty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e12 Years\u003cbr data-end=\"1289\" data-start=\"1286\"\u003e\u003cstrong data-end=\"1301\" data-start=\"1289\"\u003eSupport:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLifetime USA-Based Tech Support\u003c\/p\u003e\n\u003ch3 data-end=\"1362\" data-start=\"1342\" data-section-id=\"18fxkdn\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1362\" data-start=\"1345\"\u003eCompatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1402\" data-start=\"1364\"\u003e\u003cstrong data-end=\"953\" data-start=\"900\"\u003eClosed-Loop Communication with Inverters (Off Grid Non-UL 9540 Installs)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"977\" data-start=\"956\"\u003eAll BigBattery APEX Inverters\u003c\/p\u003e\n\u003cp data-end=\"1015\" data-start=\"1003\"\u003eAll EG4 Inverters\u003c\/p\u003e\n\u003cp data-end=\"1509\" data-start=\"1486\"\u003e\u003cstrong data-end=\"1509\" data-start=\"1486\"\u003ePower Flexibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSupports off-grid installations\u003c\/p\u003e\n\u003cp\u003eScalable energy storage for residential and commercial use\u003c\/p\u003e\n\u003cp\u003eDesigned for scalable energy storage applications\u003c\/p\u003e\n\u003ch3 data-end=\"1657\" data-start=\"1638\" data-section-id=\"1j5qwet\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1657\" data-start=\"1641\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2300\" data-start=\"1659\"\u003e\n\u003cli data-end=\"1752\" data-start=\"1659\" data-section-id=\"kkj8m0\"\u003e\n\u003cstrong data-end=\"1693\" data-start=\"1661\"\u003e15kWh LiFePO₄ Battery Module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Safe, high-capacity lithium storage with long lifespan\u003c\/li\u003e\n\u003cli data-end=\"1831\" data-start=\"1753\" data-section-id=\"1o9om7f\"\u003e\n\u003cstrong data-end=\"1776\" data-start=\"1755\"\u003e6,000+ Cycle Life\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Built for years of daily use and long-term savings\u003c\/li\u003e\n\u003cli data-end=\"1936\" data-start=\"1832\" data-section-id=\"cc83np\"\u003e\n\u003cstrong data-end=\"1861\" data-start=\"1834\"\u003eAdvanced BMS Protection\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Multi-layer protection against voltage, current, and temperature risks\u003c\/li\u003e\n\u003cli data-end=\"2006\" data-start=\"1937\" data-section-id=\"pnowez\"\u003e\n\u003cstrong data-end=\"1964\" data-start=\"1939\"\u003eSelf-Heating Function\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Reliable performance in cold climates\u003c\/li\u003e\n\u003cli data-end=\"2088\" data-start=\"2007\" data-section-id=\"u4vsh0\"\u003e\n\u003cstrong data-end=\"2040\" data-start=\"2009\"\u003eIntegrated Thermal Suppression\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Built-in aerosol system for enhanced safety\u003c\/li\u003e\n\u003cli data-end=\"2156\" data-start=\"2089\" data-section-id=\"98d0vq\"\u003e\n\u003cstrong data-end=\"2112\" data-start=\"2091\"\u003eModular Expansion\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Scale from 15kWh up to 225kWh as needed\u003c\/li\u003e\n\u003cli data-end=\"2233\" data-start=\"2157\" data-section-id=\"18zufzb\"\u003e\n\u003cstrong data-end=\"2192\" data-start=\"2159\"\u003eCompact Floor-Standing Design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Easy placement without wall mounting\u003c\/li\u003e\n\u003cli data-end=\"2300\" data-start=\"2234\" data-section-id=\"1ph7tfo\"\u003e\n\u003cstrong data-end=\"2266\" data-start=\"2236\"\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 \u003cstrong data-end=\"2368\" data-start=\"2309\"\u003ereliable, scalable, and safety-focused battery solution\u003c\/strong\u003e built for long-term energy independence.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eDownloads \u0026amp; Specifications\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cdiv class=\"table-header\"\u003e\n\u003ch2\u003eBattery Specifications\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-body table-single\"\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eBattery Specifications:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eNEXUS 15KWh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eGTIN\/UPC:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e00199874694771\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSystem Voltage:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e48V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eNominal Voltage:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e51.2V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eChemistry:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eLiFePO4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eUsable Energy (kWh):\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e15kWh\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eAh Capacity:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e300Ah\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCell Configuration:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e16S1P\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax Continuous Discharge Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e140A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax Continuous Power:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e7.6kW\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cspan class=\"row-key\"\u003eMax Discharge Peak Current:270A(1s)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax Charge Current:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e140A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCharging Voltage Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e53.5V-57.6V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eOperating Voltage Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e48V-57.6V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax Charge Voltage:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e57.9V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSuggested Low Voltage Cutoff:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e50.8V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCharge Temp Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e32°F to 113°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eDischarge Temp Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e-4°F to 113°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eOptimal Discharge Temp:59\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e°F to 95°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\u003cspan class=\"row-key\"\u003eStorage Temp Range (SoC \u0026gt;50%):(1 month:\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"row-value\"\u003e-4°F ~ 113°F | 3 months: -4°F ~ 95°F | 6 months: -4°F ~ 77°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eHumidity Range:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e10%-95% (No Condensation)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eWeight (lbs):\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e~315 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eDimensions (WxHxD):\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e19.7 x 27.5 x 15.7 in (500×700×400 mm)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eAltitude Limit:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e\u0026lt;2000m\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eMax Connections:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003e15 in parallel (up to 225kWh)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eCommunications:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eRS485 \/ RJ45 \/ CAN\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eProtection Rating:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eIP54\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eInstallation:\u003c\/span\u003e\u003cspan class=\"row-value\"\u003eIndoor Floor-standing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\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\"\u003eF-NXUS-48150-G1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-row\"\u003e\n\u003cspan class=\"row-key\"\u003eSpec Sheet:\u003c\/span\u003e\u003ca class=\"download-btn\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2026\/01\/Nexus-SpecSheet.pdf\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg decoding=\"async\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" alt=\"Download\"\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 class=\"download-btn\" href=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/12\/NEXUS-User-Manual1.2.3.pdf\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg decoding=\"async\" src=\"https:\/\/bigbattery.com\/wp-content\/themes\/shoptimizer-child\/template-parts\/product\/assets\/images\/download.png\" alt=\"Download\"\u003eDOWNLOAD\u003c\/a\u003e\n\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\u003cdiv class=\"shoptimizer-archive\"\u003e\n\u003cdiv class=\"col-full\"\u003e\n\u003cdiv id=\"primary\" class=\"content-area\"\u003e\u003cmain id=\"main\" class=\"site-main\" role=\"main\"\u003e\n\u003cdiv id=\"product-158952\" class=\"product type-product post-158952 status-publish first instock product_cat-off-grid-solar has-post-thumbnail taxable shipping-taxable purchasable product-type-simple\"\u003e\n\u003cdiv class=\"product__desc\"\u003e\n\u003cdiv class=\"product__desc-wrapper\"\u003e\n\u003cdiv class=\"bb_container\"\u003e\n\u003cdiv class=\"bb_row\"\u003e\n\u003cdiv class=\"bb_w-6 bb_product_tabs\"\u003e\n\u003cdiv class=\"bb_tabs_content\"\u003e\n\u003cdiv class=\"bb_tab_content pad-1 active\" id=\"warranty-info-tab\"\u003e\n\u003cp\u003eBigBattery batteries are backed by a 12-year warranty, giving you reliable long-term performance and confidence in every charge. Designed for durability and engineered to last, our batteries are built to power your setup for over a decade. For more information, please visit our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/bigbattery.com\/policies\/\"\u003epolicy page\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/main\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BigBattery","offers":[{"title":"1x BigBattery NEXUS","offer_id":48632015388918,"sku":"F-NXUS-48150-G1","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/3738\/7254\/files\/109-1.webp?v=1776538258","url":"https:\/\/ecopowerit.com\/products\/bigbattery-48v-15kwh-nexus-lifepo4-battery","provider":"EcoPowerit","version":"1.0","type":"link"}