{"product_id":"the-grid-defiant-humsienk-314ah-lifepo4-battery","title":"The Grid Defiant | Humsienk 12V 314Ah LiFePO4 Battery — 4019Wh Deep-Cycle Energy Storage","description":"\n\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eEnergy independence is not a luxury. It is the single most consequential upgrade you can make to a life spent beyond the reach of shore power. Whether you are running a 12V refrigerator in a van conversion parked at the edge of a national forest, powering a trolling motor across a glass-flat lake at dawn, or building an off-grid cabin that answers to no utility company — the battery is the center of gravity. Everything else is accessory. The Humsienk 314Ah LiFePO4 is not an accessory. It is a 4019-watt-hour declaration of autonomy.\u003c\/p\u003e\n\u003cp\u003eInside the sealed ABS case, 314 amp-hours of Grade A+ lithium iron phosphate cells are managed by a 200-amp BMS that watches temperature, voltage, and current across every charge cycle. The chemistry is the story: LiFePO4 delivers 4000+ cycles at 80% depth of discharge — that is over a decade of daily use before capacity meaningfully degrades. Compare this to lead-acid, which might give you 500 cycles if treated gently. The weight-to-energy ratio is another silent revolution: this battery stores nearly twice the usable energy of an equivalent lead-acid bank at one-third the weight. No venting. No maintenance. No acid stratification. Just a quiet, relentless supply of stored sunlight or alternator power, ready when you are.\u003c\/p\u003e\n\u003cp\u003eUL1973 certification means this battery has passed the same safety standard required for stationary energy storage installations. The 2-year warranty is not a marketing promise — it is an actuarial statement about how rarely these cells fail. For the van lifer, the marine cruiser, the solar homesteader, and anyone who needs power that does not ask permission — the Humsienk 314Ah is not a battery. It is a quiet partner in the project of living untethered.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eYou cannot buy freedom. But you can store it at 12 volts.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ 4019Wh total energy capacity — powers a 12V refrigerator for 4-6 days on a single charge\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ Grade A+ LiFePO4 cells rated for 4000+ deep cycles at 80% DoD\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ 200A BMS with low-temperature charging protection, over-current, short-circuit, and cell-balancing safeguards\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ UL1973 certified for stationary storage — meets the same safety standard as grid-tied battery installations\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ 2-year manufacturer warranty with responsive customer support\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ One-third the weight of equivalent lead-acid — 314Ah at a fraction of the footprint\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e✦ Maintenance-free sealed design — no watering, no venting, no terminal corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 12.8V\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eRated Capacity:\u003c\/strong\u003e 314Ah (4019Wh)\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eBattery Chemistry:\u003c\/strong\u003e Lithium Iron Phosphate (LiFePO4)\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eBMS Rating:\u003c\/strong\u003e 200A continuous discharge, 100A charge\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e 4000+ cycles at 80% Depth of Discharge\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL1973, CE, RoHS\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eLow Temp Protection:\u003c\/strong\u003e Yes — charging disabled below 0°C \/ 32°F\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e M8 bolt terminals (+ pole left configuration)\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to 45°C \/ Discharge: -20°C to 60°C\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0; border-bottom: 1px solid #eee;\"\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eApplication Scenarios\u003c\/h3\u003e\n\u003cp\u003eVan life and RV conversion builders rely on the Humsienk 314Ah as a primary house battery, running 12V refrigerators, LED lighting, water pumps, and inverters for days between charges. Marine applications — from trolling motors on bass boats to auxiliary power on cruising sailboats — benefit from the vibration-resistant sealed design and the ability to mount in any orientation. Off-grid solar cabins pair this battery with 400-800W of photovoltaic panels to create a self-sustaining microgrid that powers lights, communications equipment, and small appliances through multi-day cloud cover. Backup power systems for home offices, CPAP machines, and medical devices provide silent, zero-emission emergency power that lead-acid generators cannot match. For expedition overlanders crossing continents on a single charge-decision, the 314Ah capacity transforms the vehicle from a transport pod into a mobile base camp.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I connect multiple batteries in series or parallel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The Humsienk 314Ah supports parallel connection for increased capacity (up to 4 units recommended in parallel for 1256Ah). Series connection is not supported — for 24V or 48V systems, select a native-voltage LiFePO4 battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this battery work with my existing lead-acid charger?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: We recommend a LiFePO4-compatible charger with a charging profile of 14.2V-14.6V absorption and 13.6V float. Using a lead-acid charger may result in incomplete charging and reduced cycle life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does low-temperature charging protection work?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 200A BMS monitors internal cell temperature. When below 0°C (32°F), the BMS disables the charging circuit to prevent lithium plating damage. Discharging remains functional down to -20°C (-4°F).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the actual usable energy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: At the recommended 80% depth of discharge, you get approximately 3215Wh of usable energy per cycle. This translates to roughly 250Ah at 12.8V nominal — enough to run a 60W 12V refrigerator for 53 hours continuously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this battery safe for indoor installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. LiFePO4 chemistry is inherently thermally stable — it does not experience thermal runaway like other lithium chemistries. Combined with UL1973 certification, the Humsienk 314Ah is safe for enclosed indoor installations in living spaces, garages, and cabins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-gallery\" style=\"margin-top: 30px; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sa6fa8cd25c054bae9be0509cd92f88e0W.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sf3410de21862411ca7d0570d1e46782fZ.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sc843e0efeb544656ad57a3aaf7e238cdt.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b7bcfcf42fc4bfeb7661ff7fc5be8868.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S5c703f1de59b4b9886eb54178102c26eQ.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2f88e6525cc942e592a0da4ba17df919A.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S62791f4b81ef4b41bd8472a28d2cf292B.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sed68d4c20b7643a0be9fc61a20e17e4aW.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S092cc92003a045d884d05f5ee5b573b5t.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S0bf03f3f21f34e26bd507757f6c98636R.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7969d9b398b3490cb092a11eb1c2d877U.webp?v=1782007957\" style=\"max-width: 100%; margin: 10px 0;\" alt=\"Product image\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"The Grid Defiant | Humsienk 12V 314Ah LiFePO4 Battery — 4019Wh Deep-Cycle Energy Storage\",\n  \"description\": \"The Grid Defiant | Humsienk 12V 314Ah LiFePO4 Battery — 4019Wh Deep-Cycle Energy Storage\",\n  \"sku\": \"ES-9425727455455\",\n  \"url\": \"https:\/\/eastsupplier.com\/products\/the-grid-defiant-humsienk-314ah-lifepo4-battery\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/eastsupplier.com\/products\/the-grid-defiant-humsienk-314ah-lifepo4-battery\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"1038.1\",\n    \"priceValidUntil\": \"2027-06-21\",\n    \"availability\": \"https:\/\/schema.org\/InStock\"\n  },\n  \"aggregateRating\": {\n    \"@type\": \"AggregateRating\",\n    \"ratingValue\": \"4.8\",\n    \"reviewCount\": \"3\"\n  }\n}\n\u003c\/script\u003e","brand":"EastSupplier Platform","offers":[{"title":"LiFePO4 Battery \/ United States","offer_id":50322395726047,"sku":"1005009201596086-LiFePO4 Battery-United States","price":1038.1,"currency_code":"USD","in_stock":true},{"title":"LiFePO4 Battery-3PK \/ United States","offer_id":50322395758815,"sku":"1005009201596086-LiFePO4 Battery-3PK-United States","price":3051.98,"currency_code":"USD","in_stock":true},{"title":"LiFePO4 Battery-4PK \/ United States","offer_id":50322395791583,"sku":"1005009201596086-LiFePO4 Battery-4PK-United States","price":4027.8,"currency_code":"USD","in_stock":true},{"title":"LiFePO4 Battery-2PK \/ United States","offer_id":50322395824351,"sku":"1005009201596086-LiFePO4 Battery-2PK-United States","price":2055.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S3ef9a94f58e24c888d8c3283f824127cI.webp?v=1782007957","url":"https:\/\/eastsupplier.com\/ja\/products\/the-grid-defiant-humsienk-314ah-lifepo4-battery","provider":"EastSupplier Platform","version":"1.0","type":"link"}