{"title":"400Ah Batteries","description":"\u003ch2\u003e400Ah Batteries for Solar \u0026amp; Backup Systems\u003c\/h2\u003e\n\u003cp\u003eShop \u003cstrong\u003e400Ah batteries\u003c\/strong\u003e at PES Supply for solar, off-grid, and backup power applications. 400 amp-hour batteries provide substantial energy storage in a manageable size, ideal for medium to large battery banks. Available in LiFePO4 lithium, AGM, and gel chemistries from trusted brands including \u003cstrong\u003eEG4, Fortress Power, Universal Power Group\u003c\/strong\u003e, and more.\u003c\/p\u003e\n\u003ch3\u003e400Ah Battery Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 lithium\u003c\/strong\u003e – 6,000+ cycles, 80% DoD, built-in BMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAGM\u003c\/strong\u003e – budget-friendly, maintenance-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGel\u003c\/strong\u003e – deep-cycle, heat-tolerant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V, 24V, and 48V\u003c\/strong\u003e options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\/parallel\u003c\/strong\u003e configurations for any voltage and capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 400Ah battery at 48V stores approximately 19kWh of usable energy (at 80% DoD for lithium). Multiple batteries can be connected in series for higher voltage or parallel for more capacity. Our team helps you size a bank matched to your inverter, loads, and autonomy requirements.\u003c\/p\u003e\n\u003cp\u003eBrowse the full selection below and \u003cstrong\u003eorder today\u003c\/strong\u003e with fast shipping from PES Supply. Questions? Our solar and backup power experts are ready to help you spec the right system—\u003ca href=\"\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"eg4-ll-12v-400ah-lithium-iron-phosphate-battery","title":"EG4 Electronics LL V2 12V V2 400AH Lithium Iron Phosphate Battery","description":"\u003ch2 class=\"\" data-start=\"186\" data-end=\"283\"\u003e\u003cstrong data-start=\"189\" data-end=\"283\"\u003eEG4 ® LL 12V 400AH Lithium Iron Phosphate Battery – Premium Power with Lifetime Reliability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"\" data-start=\"341\" data-end=\"740\"\u003eThe \u003cstrong data-start=\"345\" data-end=\"396\"\u003eEG4 LL 12V 400AH Lithium Iron Phosphate Battery\u003c\/strong\u003e is the latest evolution in energy storage, offering unmatched durability, efficiency, and ease of use. Engineered with EG4 ®'s signature Lifetime Lithium (LL) technology, this 12.8V (12V) battery delivers a powerful 5.12kWh capacity and features an advanced 200A internal BMS, making it ideal for both residential and commercial energy systems.\u003c\/p\u003e\n\u003cp class=\"\" data-start=\"742\" data-end=\"1105\"\u003eBuilt with \u003cstrong data-start=\"753\" data-end=\"798\"\u003e16 UL-listed prismatic 3.2V LiFePO4 cells\u003c\/strong\u003e, the \u003cstrong data-start=\"804\" data-end=\"855\"\u003eEG4 LL 12V 400AH Lithium Iron Phosphate Battery\u003c\/strong\u003e undergoes rigorous testing through 7,000 deep discharge cycles at 80% DoD. This means users can count on over \u003cstrong data-start=\"966\" data-end=\"991\"\u003e15 years of daily use\u003c\/strong\u003e without performance degradation—thanks to its incredible 99% operational efficiency and robust cell construction.\u003c\/p\u003e\n\u003cp class=\"\" data-start=\"1107\" data-end=\"1410\"\u003eDesigned for ultimate user convenience, the battery includes an LCD screen for real-time monitoring and supports \u003cstrong data-start=\"1220\" data-end=\"1259\"\u003eclosed-loop inverter communications\u003c\/strong\u003e, including \u003cstrong data-start=\"1271\" data-end=\"1290\"\u003eVictron and EG4\u003c\/strong\u003e. Its \u003cstrong data-start=\"1296\" data-end=\"1323\"\u003eplug-and-play interface\u003c\/strong\u003e and compatibility with a wide range of energy setups make installation quick and easy.\u003c\/p\u003e\n\u003cp class=\"\" data-start=\"1412\" data-end=\"1614\"\u003eEvery unit includes a \u003cstrong data-start=\"1434\" data-end=\"1470\"\u003e1-foot RS485 communication cable\u003c\/strong\u003e and a \u003cstrong data-start=\"1477\" data-end=\"1499\"\u003eparallel cable set\u003c\/strong\u003e. For every six units purchased, a \u003cstrong data-start=\"1534\" data-end=\"1575\"\u003eRS485 USB battery communication cable\u003c\/strong\u003e is also included (shipped separately).\u003c\/p\u003e\n\u003ch3 class=\"\" data-start=\"1621\" data-end=\"1648\"\u003e\u003cstrong data-start=\"1625\" data-end=\"1648\"\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1649\" data-end=\"2307\"\u003e\n\u003cli class=\"\" data-start=\"1649\" data-end=\"1725\"\u003e\n\u003cp class=\"\" data-start=\"1651\" data-end=\"1725\"\u003e\u003cstrong data-start=\"1651\" data-end=\"1680\"\u003eTier One A+ Lithium Cells\u003c\/strong\u003e – Premium quality for extended reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1726\" data-end=\"1806\"\u003e\n\u003cp class=\"\" data-start=\"1728\" data-end=\"1806\"\u003e\u003cstrong data-start=\"1728\" data-end=\"1758\"\u003e99% Operational Efficiency\u003c\/strong\u003e – Exceptional energy output with minimal loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1807\" data-end=\"1878\"\u003e\n\u003cp class=\"\" data-start=\"1809\" data-end=\"1878\"\u003e\u003cstrong data-start=\"1809\" data-end=\"1826\"\u003eLong Lifespan\u003c\/strong\u003e – 7,000 cycles at 80% DoD; 10–20-year design life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1879\" data-end=\"1970\"\u003e\n\u003cp class=\"\" data-start=\"1881\" data-end=\"1970\"\u003e\u003cstrong data-start=\"1881\" data-end=\"1914\"\u003eFlexible Installation Options\u003c\/strong\u003e – Modular design with versatile racking compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"1971\" data-end=\"2041\"\u003e\n\u003cp class=\"\" data-start=\"1973\" data-end=\"2041\"\u003e\u003cstrong data-start=\"1973\" data-end=\"1989\"\u003eEco-Friendly\u003c\/strong\u003e – 100% lead-free and recyclable LiFePO4 chemistry\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2042\" data-end=\"2141\"\u003e\n\u003cp class=\"\" data-start=\"2044\" data-end=\"2141\"\u003e\u003cstrong data-start=\"2044\" data-end=\"2066\"\u003eBuilt-in Smart BMS\u003c\/strong\u003e – Intelligent control for voltage, current, temperature \u0026amp; battery health\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2142\" data-end=\"2231\"\u003e\n\u003cp class=\"\" data-start=\"2144\" data-end=\"2231\"\u003e\u003cstrong data-start=\"2144\" data-end=\"2165\"\u003eExpandable System\u003c\/strong\u003e – Easily scale your battery bank without performance compromise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2232\" data-end=\"2307\"\u003e\n\u003cp class=\"\" data-start=\"2234\" data-end=\"2307\"\u003e\u003cstrong data-start=\"2234\" data-end=\"2252\"\u003eInverter-Ready\u003c\/strong\u003e – Closed-loop communication with EG4 \u0026amp; Victron systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\" data-start=\"2314\" data-end=\"2340\"\u003e\u003cstrong data-start=\"2318\" data-end=\"2340\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2341\" data-end=\"2748\"\u003e\n\u003cli class=\"\" data-start=\"2341\" data-end=\"2371\"\u003e\n\u003cp class=\"\" data-start=\"2343\" data-end=\"2371\"\u003e\u003cstrong data-start=\"2343\" data-end=\"2363\"\u003eNominal Voltage:\u003c\/strong\u003e 12.8V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2372\" data-end=\"2395\"\u003e\n\u003cp class=\"\" data-start=\"2374\" data-end=\"2395\"\u003e\u003cstrong data-start=\"2374\" data-end=\"2387\"\u003eCapacity:\u003c\/strong\u003e 400Ah\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2396\" data-end=\"2427\"\u003e\n\u003cp class=\"\" data-start=\"2398\" data-end=\"2427\"\u003e\u003cstrong data-start=\"2398\" data-end=\"2417\"\u003eEnergy Storage:\u003c\/strong\u003e 5.12kWh\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2428\" data-end=\"2461\"\u003e\n\u003cp class=\"\" data-start=\"2430\" data-end=\"2461\"\u003e\u003cstrong data-start=\"2430\" data-end=\"2454\"\u003eInternal BMS Rating:\u003c\/strong\u003e 200A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2462\" data-end=\"2544\"\u003e\n\u003cp class=\"\" data-start=\"2464\" data-end=\"2544\"\u003e\u003cstrong data-start=\"2464\" data-end=\"2487\"\u003eDimensions (L×W×H):\u003c\/strong\u003e 19 in × 6.1 in × 20.2 in (48.2 cm × 15.5 cm × 51.3 cm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2545\" data-end=\"2579\"\u003e\n\u003cp class=\"\" data-start=\"2547\" data-end=\"2579\"\u003e\u003cstrong data-start=\"2547\" data-end=\"2558\"\u003eWeight:\u003c\/strong\u003e 98.1 lbs (44.5 kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2580\" data-end=\"2638\"\u003e\n\u003cp class=\"\" data-start=\"2582\" data-end=\"2638\"\u003e\u003cstrong data-start=\"2582\" data-end=\"2598\"\u003eDesign Life:\u003c\/strong\u003e 7,000 Cycles @ 80% Depth of Discharge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2639\" data-end=\"2698\"\u003e\n\u003cp class=\"\" data-start=\"2641\" data-end=\"2698\"\u003e\u003cstrong data-start=\"2641\" data-end=\"2665\"\u003eCommunication Ports:\u003c\/strong\u003e RS485, Plug-and-Play Interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"\" data-start=\"2699\" data-end=\"2748\"\u003e\n\u003cp class=\"\" data-start=\"2701\" data-end=\"2748\"\u003e\u003cstrong data-start=\"2701\" data-end=\"2713\"\u003eDisplay:\u003c\/strong\u003e Integrated LCD Monitoring Screen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" data-start=\"2755\" data-end=\"3113\"\u003eThe \u003cstrong data-start=\"2759\" data-end=\"2810\"\u003eEG4 LL 12V 400AH Lithium Iron Phosphate Battery\u003c\/strong\u003e is the perfect choice for solar energy storage, off-grid systems, and backup power applications. It combines top-tier performance, extended life, and seamless integration into modern energy systems. Power your future with confidence—choose the \u003cstrong data-start=\"3055\" data-end=\"3106\"\u003eEG4 LL 12V 400AH Lithium Iron Phosphate Battery\u003c\/strong\u003e today.\u003c\/p\u003e","brand":"EG4 Electronics","offers":[{"title":"Default Title","offer_id":41763027550342,"sku":"PES-ESS-BTS-0226","price":1298.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/5188\/6982\/files\/PES-ESS-BTS-0226-1-1.png?v=1758196005"},{"product_id":"crown-renewable-power-6v-400ah-agm-battery-6crv400","title":"Crown Renewable Power 6V 400Ah AGM Battery - 6CRV400","description":"\u003ch2\u003eCrown Renewable Power 6V 400Ah AGM Battery - 6CRV400\u003c\/h2\u003e\n\u003cp\u003eThe Crown 6CRV400 is a powerful 6V deep-cycle AGM battery, designed for energy storage in off-grid solar systems, RVs, and backup power applications. With a 400Ah capacity, this battery offers excellent performance and long-lasting energy storage. Its AGM (Absorbent Glass Mat) technology ensures a maintenance-free, safe, and reliable battery, ideal for use in \u003ca href=\"https:\/\/www.portlandiaelectric.supply\/pages\/renewable-energy-utilities\" target=\"_blank\" title=\"\" rel=\"noopener\"\u003erenewable energy systems\u003c\/a\u003e that require high efficiency and durability.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003ch3\u003eHigh Capacity\u003c\/h3\u003e\n\u003cp\u003eThe 6CRV400 offers a substantial 400Ah capacity at 6V, providing a reliable \u003ca href=\"https:\/\/share.google\/7SarIT9woM71Y7LFU\" target=\"_blank\" title=\"\" rel=\"noopener\"\u003eenergy\u003c\/a\u003e source for a variety of solar and off-grid applications.\u003c\/p\u003e\n\u003ch3\u003eAGM Technology\u003c\/h3\u003e\n\u003cp\u003eUtilizes AGM technology to ensure maintenance-free operation, making it a safer and more convenient energy storage solution compared to traditional flooded lead-acid batteries.\u003c\/p\u003e\n\u003ch3\u003eDeep-Cycle Design\u003c\/h3\u003e\n\u003cp\u003eDesigned for deep cycling, this battery is built to handle regular charge and discharge cycles, making it perfect for off-grid systems where reliability is critical.\u003c\/p\u003e\n\u003ch3\u003eDurability\u003c\/h3\u003e\n\u003cp\u003eEngineered for long-lasting performance, the 6CRV400 is ideal for harsh environments and demanding power needs, ensuring it operates effectively over many years of use.\u003c\/p\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe Crown 6CRV400 stores energy from solar panels or the grid and provides power when solar generation is low. Its AGM design enables efficient charge\/discharge cycles, ensuring reliable and uninterrupted power supply. This battery is perfect for off-grid homes, RVs, and backup systems, providing consistent energy storage over time.\u003c\/p\u003e\n\u003ch3\u003eEnergy Storage\u003c\/h3\u003e\n\u003cp\u003eThe battery stores DC power and releases it when needed, maintaining a steady power supply to critical appliances or systems, even when solar generation is unavailable.\u003c\/p\u003e\n\u003ch3\u003eMaintenance-Free Operation\u003c\/h3\u003e\n\u003cp\u003eThanks to AGM technology, the 6CRV400 requires no maintenance, making it an ideal choice for users seeking a hassle-free energy storage solution.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAGM (Absorbent Glass Mat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e98 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5\" x 9.5\" x 15.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Crown Battery","offers":[{"title":"Default Title","offer_id":42990135640198,"sku":"PES-ESS-BTS-0372","price":1143.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/5188\/6982\/files\/6CRV400-2T.png?v=1765721965"},{"product_id":"eg4-lithium-battery-12v-400ah-eg4lp12v400av3-server-rack-battery-w-lcd","title":"EG4 Lithium Battery 12V 400AH EG4LP12V400AV3 Server Rack Battery w\/LCD","description":"\u003ch2\u003e\u003cstrong\u003eEG4 Lithium Battery 12V 400AH EG4LP12V400AV3 Server Rack Battery w\/LCD\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe EG4 Lithium Battery 12V 400AH EG4LP12V400AV3 Server Rack Battery w\/LCD from EG4 Battery is a premium storage solutions designed for residential and commercial solar energy systems. This high-performance unit delivers reliable power output with industry-leading efficiency and durability.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium EG4 Battery Quality\u003c\/strong\u003e – Trusted manufacturer with proven reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2026 Model\u003c\/strong\u003e – Latest technology with full warranty coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEG4 Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eStorage Solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy from Portlandia Electric Supply?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompetitive pricing with price matching\u003c\/li\u003e\n\u003cli\u003eFree shipping on qualifying orders\u003c\/li\u003e\n\u003cli\u003eExpert technical support and installation guidance\u003c\/li\u003e\n\u003cli\u003eAuthorized dealer with full manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eFast delivery from US warehouses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now and power your future with clean energy!\u003c\/strong\u003e\u003c\/p\u003e","brand":"EG4","offers":[{"title":"Default Title","offer_id":44087817732230,"sku":"PES-GAP-eg4-lithium-battery-","price":1455.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/5188\/6982\/files\/prod_image_USSSP201-442_01_2025_EG4.webp?v=1781909703"}],"url":"https:\/\/www.portlandiaelectric.supply\/collections\/400ah-batteries.oembed","provider":"Portlandia Electric Supply","version":"1.0","type":"link"}