{"product_id":"lilion-ut™-3500-htr-12v-lithium-battery-with-heater-280ah-3-584wh-lifepo4-bluetooth","title":"LiLIon UT™ 3500 HTR 12V Lithium Battery with Heater | 280Ah (3,584Wh) LiFePO4 | Bluetooth","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e The Lion UT™ 3500 HTR is Lion Energy's most powerful lithium battery — delivering nearly 3x the capacity of the standard UT 1300 in roughly the same footprint as two standard batteries. Built with safe, long-lasting Lithium Iron Phosphate (LiFePO4) cells and a built-in internal heater, it performs reliably year-round including in cold climates. Ideal for solar energy banks, RVs, cabins, marine systems, and emergency backup power.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e280Ah capacity (3,584Wh) — nearly 3x the power of a UT 1300 BT-H\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e24% lower cost per amp-hour compared to three UT 1300 BT-H batteries\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBuilt-in internal heater — maintains optimal battery temperature in freezing conditions\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e12.8V LiFePO4 technology — the safest lithium chemistry available\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBluetooth monitoring — track charge status, health, and real-time usage via the Lion Energy Smart App\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e100% usable capacity — unlike lead-acid which gives only 50%\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBattery Management System (BMS) — protects against overcharge, over-discharge, and short circuit\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eExpandable — connect up to 4 in parallel (1,120Ah) or series up to 48V\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eContinuous discharge: 150A \/ Peak: 280A\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRecommended charger: Savanna BC 45 (45A) — fully charges in ~6 hours\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eLimited Lifetime Warranty\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eZero emissions — safe for indoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\"⚠️ Shipping Notice: This item requires freight shipping and must be ordered separately from other Lion Energy products. Freight cost will be calculated at checkout.\"\u003c\/p\u003e","brand":"Lion Energy","offers":[{"title":"Default Title","offer_id":47727140405413,"sku":"50170186","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6825\/0277\/files\/2026-04-21FrontnewUT3500BT-Hdeliversnearly3Xthepower.png?v=1776799649","url":"https:\/\/homeiqsystems.com\/products\/lilion-ut%e2%84%a2-3500-htr-12v-lithium-battery-with-heater-280ah-3-584wh-lifepo4-bluetooth","provider":"HomeIQSystems","version":"1.0","type":"link"}