{"product_id":"aims-power-auxiliary-12v-lithium-battery-420-amp-5-58-kwh","title":"Aims Power Auxiliary 12V Lithium Battery 420 Amp – 5.58 kWh - AIO-12V-BAT1","description":"\u003ch2\u003eAims Power Auxiliary 12V Lithium Battery 420 Amp – 5.58 kWh - AIO-12V-BAT1\u003c\/h2\u003e\n\u003cp\u003eThis battery can be used as a 12V powerful lithium battery or as an extra add-on for the ONBOARD All in One Solar Generator.\u003c\/p\u003e\n\u003cp\u003e5.58 kWh Lithium Battery 12V, 420A.The AlO Solar Generator can use up to 8 aux batteries for large amounts of stored power, up to whopping 50,274 WH (50.27 KWH)! The solar generator recharges the batteries using solar, alternator, grid, generator or a combination. \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1F2akWxiXF5LYOB7nRxxzD39a5Os9JS8v\/view?usp=share_link\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/h5\u003e\n\u003cstyle type=\"text\/css\"\u003e\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-yla0{font-weight:bold;text-align:left;vertical-align:middle}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-yla0\"\u003eBattery\u003c\/th\u003e\n\u003cth class=\"tg-cly1\"\u003eLithium LiFePO4\u003c\/th\u003e\n\u003cth class=\"tg-cly1\" colspan=\"2\"\u003e420 Ah\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-yla0\"\u003e\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eVoltage\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e12V\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e12.8 Nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-yla0\"\u003e\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eOutput Operation (Switch)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eDC Port Voltage 9.4 – 14.4Vdc\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eInverter 10.5-15V +\/-0.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-yla0\"\u003e\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eRated Energy\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\" colspan=\"2\"\u003e5.12kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-yla0\"\u003e\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eCell Configuration\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\" colspan=\"2\"\u003e4S4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-yla0\"\u003e\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eBattery Cell\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\" colspan=\"2\"\u003e3.1V 100Ah 16PC Prismatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHigh-capacity 420Ah (5.58 kWh) lithium storage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e delivers strong energy reserves for off-grid, RV, marine, and backup power systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLithium iron phosphate (LiFePO₄) chemistry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides superior cycle life, thermal stability, and safety compared to traditional lead-acid batteries.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eConsistent voltage output under load\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ensures stable performance for inverters, appliances, and sensitive electronics.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDeep-cycle capability\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e supports frequent discharging and recharging without significant capacity loss over time.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eIntegrated Battery Management System (BMS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e protects against overcharge, over-discharge, over-current, and temperature extremes.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLightweight design vs lead-acid equivalents\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes installation easier while improving overall system efficiency.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eIdeal for solar energy storage systems\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e where long-term reliability and high usable capacity are essential.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eStrong fit for serious off-grid users\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e needing scalable lithium power for cabins, mobile systems, or whole-home backup setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e                   \u003cbr\u003eQ\u0026amp;A        \u003c\/h5\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What is the AIMS Power AIO-12V-BAT1 used for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: Aims Power Auxiliary 12V Lithium Battery 420 Amp – 5.58 kWh - AIO-12V-BAT1 is a high-capacity LiFePO₄ auxiliary battery designed to expand energy storage in AIMS Power all-in-one solar and off-grid power systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: How much energy does this battery store?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It provides approximately 5.58 kWh of usable energy, offering long runtime for off-grid homes, RV systems, cabins, and backup power setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What systems is this battery compatible with?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It is designed specifically for AIMS Power all-in-one systems but can also be used in compatible 12V lithium-based off-grid solar power systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: Can this battery be expanded?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: Yes. Multiple 420Ah auxiliary batteries can be added in parallel to significantly increase total storage capacity for larger energy needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What type of battery chemistry is used?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It uses lithium iron phosphate (LiFePO₄), known for long cycle life, stable performance, and improved safety compared to lead-acid batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: Is it suitable for solar energy storage?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: Yes. It is ideal for storing solar energy in off-grid and hybrid systems, especially when paired with compatible MPPT controllers and inverters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQ: What are the benefits of a lithium auxiliary battery?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It offers higher usable capacity, faster charging, lighter weight, and deeper discharge capability compared to traditional lead-acid batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eQ: What applications is it best for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eA: It is commonly used for backup power systems, remote installations, RV\/van builds, and expanding industrial-grade solar generator setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e           \u003cbr\u003eMaintenance Tips    \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eStore and operate in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecool, dry environment (15–30°C ideal)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to preserve lithium cell life and BMS performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eKeep battery away from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edirect sunlight, moisture, and heat sources\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to prevent thermal stress and degradation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIf stored long-term, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003echarge every ~3 months\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to prevent deep sleep or capacity loss.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAvoid leaving the battery in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efully discharged state for extended periods\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e; recharge promptly after use.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure all connections are tight, clean, and corrosion-free to support high current (up to 420Ah system loads).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDo not exceed manufacturer-recommended charge\/discharge limits; rely on the built-in BMS protection.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eKeep battery surface clean and dry; avoid conductive debris or metal contact near terminals.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintain proper ventilation around the unit, even though lithium systems produce minimal gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspect cables and busbars regularly for heat marks or insulation wear under heavy load.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDo not attempt disassembly or repair—service only through qualified technicians to avoid voiding warranty.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf part of an AIO system, ensure firmware\/monitoring system is checked periodically for fault codes and balancing status.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aims Power","offers":[{"title":"400Ah Primary Battery","offer_id":45708621349055,"sku":"AIO-12V-BAT1","price":2745.99,"currency_code":"USD","in_stock":true},{"title":"400Ah Additional Battery","offer_id":45708621381823,"sku":"AIO-12V-BAT2","price":2555.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/AIO-12V-BAT2-Main-1000-600x600.jpg?v=1780981320","url":"https:\/\/backyardprovider.com\/products\/aims-power-auxiliary-12v-lithium-battery-420-amp-5-58-kwh","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}