{"product_id":"big-battery-husky-2-12v-400ah-5-12kwh-lifepo4-battery","title":"Big Battery Husky 2 - 12V 5.12kWh 400ah LifePO4 Battery","description":"\u003ch2 data-start=\"234\" data-end=\"293\"\u003eBig Battery Husky 2 – 400Ah \/ 5.12 kWh LiFePO₄ Battery\u003c\/h2\u003e \u003cp data-start=\"295\" data-end=\"661\"\u003eThe Big Battery Husky 2 is a next-generation 12V LiFePO₄ battery built for maximum power density, long cycle life, and reliable off-grid performance. Engineered to deliver 400Ah (5.12 kWh) of clean, stable energy, this battery is ideal for RVs, marine systems, solar backup, and commercial mobile applications that demand deep-cycle durability and high output.\u003c\/p\u003e \u003ch3 data-start=\"663\" data-end=\"681\"\u003eKey Features\u003c\/h3\u003e \u003cul data-start=\"682\" data-end=\"1216\"\u003e \u003cli data-start=\"682\" data-end=\"775\"\u003e \u003cp data-start=\"684\" data-end=\"775\"\u003eHigh-Capacity Power Block: 400Ah and 5.12 kWh energy storage for large-scale systems.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"776\" data-end=\"878\"\u003e \u003cp data-start=\"778\" data-end=\"878\"\u003eAdvanced LiFePO₄ Chemistry: Offers superior safety, high discharge performance, and long life.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"879\" data-end=\"1006\"\u003e \u003cp data-start=\"881\" data-end=\"1006\"\u003eIntegrated Smart BMS: Provides over-voltage, short circuit, and temperature protection with CANBus\/RS485 communication.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1007\" data-end=\"1114\"\u003e \u003cp data-start=\"1009\" data-end=\"1114\"\u003eDurable IP65 Enclosure: Built to withstand dust, moisture, and vibration in demanding environments.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1115\" data-end=\"1216\"\u003e \u003cp data-start=\"1117\" data-end=\"1216\"\u003eHigh Efficiency and Longevity: Over 95 % round-trip efficiency and up to 8,000 charge cycles.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"1223\" data-end=\"1245\"\u003eProduct Overview\u003c\/h3\u003e \u003cp data-start=\"1247\" data-end=\"1506\"\u003eThe Husky 2 redefines single-module energy storage with its powerful 12V \/ 400Ah LiFePO₄ configuration. It stores 5.12 kWh of usable energy — equivalent to four standard 12V \/ 100Ah batteries — while maintaining a smaller footprint and lighter total weight.\u003c\/p\u003e \u003cp data-start=\"1508\" data-end=\"1795\"\u003eIts integrated Battery Management System (BMS) continuously monitors voltage, temperature, and current to ensure balanced charging and optimal performance. The Husky 2’s robust aluminum casing and IP65 protection rating make it suitable for indoor or semi-outdoor installation.\u003c\/p\u003e \u003cp data-start=\"1797\" data-end=\"2147\"\u003eEngineered for off-grid, mobile, and hybrid applications, the Husky 2 easily powers high-load systems such as inverters, refrigeration, pumps, and onboard electronics. Its high discharge capacity and fast charge recovery ensure consistent performance under heavy use, whether for RV adventures, marine energy systems, or residential backup storage.\u003c\/p\u003e \u003cp data-start=\"2149\" data-end=\"2301\"\u003eThis unit delivers exceptional reliability and peace of mind — designed, tested, and supported by one of the most trusted names in LiFePO₄ technology.\u003c\/p\u003e \u003ch3 data-start=\"2308\" data-end=\"2338\"\u003eTechnical Specifications\u003c\/h3\u003e \u003cdiv\u003e \u003cdiv tabindex=\"-1\"\u003e \u003ctable data-start=\"2340\" data-end=\"3230\"\u003e \u003cthead data-start=\"2340\" data-end=\"2367\"\u003e \u003ctr data-start=\"2340\" data-end=\"2367\"\u003e \u003cth data-start=\"2340\" data-end=\"2356\" data-col-size=\"sm\"\u003eSpecification\u003c\/th\u003e \u003cth data-start=\"2356\" data-end=\"2367\" data-col-size=\"sm\"\u003eDetails\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody data-start=\"2398\" data-end=\"3230\"\u003e \u003ctr data-start=\"2398\" data-end=\"2417\"\u003e \u003ctd data-start=\"2398\" data-end=\"2406\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e \u003ctd data-start=\"2406\" data-end=\"2417\" data-col-size=\"sm\"\u003eHusky 2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2418\" data-end=\"2444\"\u003e \u003ctd data-start=\"2418\" data-end=\"2436\" data-col-size=\"sm\"\u003eNominal Voltage\u003c\/td\u003e \u003ctd data-start=\"2436\" data-end=\"2444\" data-col-size=\"sm\"\u003e12 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2445\" data-end=\"2477\"\u003e \u003ctd data-start=\"2445\" data-end=\"2456\" data-col-size=\"sm\"\u003eCapacity\u003c\/td\u003e \u003ctd data-start=\"2456\" data-end=\"2477\" data-col-size=\"sm\"\u003e400 Ah \/ 5.12 kWh\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2478\" data-end=\"2526\"\u003e \u003ctd data-start=\"2478\" data-end=\"2490\" data-col-size=\"sm\"\u003eChemistry\u003c\/td\u003e \u003ctd data-start=\"2490\" data-end=\"2526\" data-col-size=\"sm\"\u003eLithium Iron Phosphate (LiFePO₄)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2527\" data-end=\"2569\"\u003e \u003ctd data-start=\"2527\" data-end=\"2552\" data-col-size=\"sm\"\u003eCharging Voltage Range\u003c\/td\u003e \u003ctd data-start=\"2552\" data-end=\"2569\" data-col-size=\"sm\"\u003e13.9 – 14.0 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2570\" data-end=\"2605\"\u003e \u003ctd data-start=\"2570\" data-end=\"2595\" data-col-size=\"sm\"\u003eMaximum Charge Voltage\u003c\/td\u003e \u003ctd data-start=\"2595\" data-end=\"2605\" data-col-size=\"sm\"\u003e14.4 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2606\" data-end=\"2647\"\u003e \u003ctd data-start=\"2606\" data-end=\"2632\" data-col-size=\"sm\"\u003eOperating Voltage Range\u003c\/td\u003e \u003ctd data-start=\"2632\" data-end=\"2647\" data-col-size=\"sm\"\u003e12 – 14.4 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2648\" data-end=\"2696\"\u003e \u003ctd data-start=\"2648\" data-end=\"2679\" data-col-size=\"sm\"\u003eSuggested Low Voltage Cutoff\u003c\/td\u003e \u003ctd data-start=\"2679\" data-end=\"2696\" data-col-size=\"sm\"\u003e12.0 – 12.7 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2697\" data-end=\"2772\"\u003e \u003ctd data-start=\"2697\" data-end=\"2728\" data-col-size=\"sm\"\u003eContinuous Discharge Current\u003c\/td\u003e \u003ctd data-start=\"2728\" data-end=\"2772\" data-col-size=\"sm\"\u003eHigh output for inverter and heavy loads\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2773\" data-end=\"2821\"\u003e \u003ctd data-start=\"2773\" data-end=\"2798\" data-col-size=\"sm\"\u003ePeak Discharge Current\u003c\/td\u003e \u003ctd data-start=\"2798\" data-end=\"2821\" data-col-size=\"sm\"\u003e300 A (≤ 5 seconds)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2822\" data-end=\"2856\"\u003e \u003ctd data-start=\"2822\" data-end=\"2846\" data-col-size=\"sm\"\u003eRound-Trip Efficiency\u003c\/td\u003e \u003ctd data-start=\"2846\" data-end=\"2856\" data-col-size=\"sm\"\u003e≥ 95 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2857\" data-end=\"2891\"\u003e \u003ctd data-start=\"2857\" data-end=\"2873\" data-col-size=\"sm\"\u003eCommunication\u003c\/td\u003e \u003ctd data-start=\"2873\" data-end=\"2891\" data-col-size=\"sm\"\u003eCANBus \/ RS485\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2892\" data-end=\"2949\"\u003e \u003ctd data-start=\"2892\" data-end=\"2911\" data-col-size=\"sm\"\u003eEnclosure Rating\u003c\/td\u003e \u003ctd data-start=\"2911\" data-end=\"2949\" data-col-size=\"sm\"\u003eIP65 (dust-tight, water-resistant)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2950\" data-end=\"2990\"\u003e \u003ctd data-start=\"2950\" data-end=\"2959\" data-col-size=\"sm\"\u003eWeight\u003c\/td\u003e \u003ctd data-start=\"2959\" data-end=\"2990\" data-col-size=\"sm\"\u003eApproximately 95 lb (43 kg)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2991\" data-end=\"3038\"\u003e \u003ctd data-start=\"2991\" data-end=\"3004\" data-col-size=\"sm\"\u003eDimensions\u003c\/td\u003e \u003ctd data-start=\"3004\" data-end=\"3038\" data-col-size=\"sm\"\u003e320 mm D × 460 mm W × 249 mm H\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3039\" data-end=\"3087\"\u003e \u003ctd data-start=\"3039\" data-end=\"3052\" data-col-size=\"sm\"\u003eCycle Life\u003c\/td\u003e \u003ctd data-start=\"3052\" data-end=\"3087\" data-col-size=\"sm\"\u003e4,000 – 8,000 cycles @ 80 % DoD\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3088\" data-end=\"3149\"\u003e \u003ctd data-start=\"3088\" data-end=\"3112\" data-col-size=\"sm\"\u003eOperating Temperature\u003c\/td\u003e \u003ctd data-start=\"3112\" data-end=\"3149\" data-col-size=\"sm\"\u003e–20 °C to 60 °C (–4 °F to 140 °F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3150\" data-end=\"3173\"\u003e \u003ctd data-start=\"3150\" data-end=\"3161\" data-col-size=\"sm\"\u003eWarranty\u003c\/td\u003e \u003ctd data-start=\"3161\" data-end=\"3173\" data-col-size=\"sm\"\u003e10 years\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"3174\" data-end=\"3230\"\u003e \u003ctd data-start=\"3174\" data-end=\"3191\" data-col-size=\"sm\"\u003eCertifications\u003c\/td\u003e \u003ctd data-start=\"3191\" data-end=\"3230\" data-col-size=\"sm\"\u003eUL \/ UN38.3 \/ RoHS-compliant design\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003chr data-start=\"3232\" data-end=\"3235\"\u003e \u003ch3 data-start=\"3237\" data-end=\"3263\"\u003eIncluded Free in Box\u003c\/h3\u003e \u003cp data-start=\"3265\" data-end=\"3311\"\u003e12V Husky 2 – LiFePO₄ – 400Ah – 5.12 kWh\u003c\/p\u003e \u003cul data-start=\"3313\" data-end=\"3523\"\u003e \u003cli data-start=\"3313\" data-end=\"3345\"\u003e \u003cp data-start=\"3315\" data-end=\"3345\"\u003e(2) Husky 2 Carrying Handles\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3346\" data-end=\"3405\"\u003e \u003cp data-start=\"3348\" data-end=\"3405\"\u003e(2) L Mounting Brackets and Cross Module Mounting Plate\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3406\" data-end=\"3423\"\u003e \u003cp data-start=\"3408\" data-end=\"3423\"\u003e(2) M8 Screws\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3424\" data-end=\"3467\"\u003e \u003cp data-start=\"3426\" data-end=\"3467\"\u003e(1) Red and Black Terminal Rubber Cover\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3468\" data-end=\"3523\"\u003e \u003cp data-start=\"3470\" data-end=\"3523\"\u003e(1) CBL100 – 4 AWG 3 ft Ring-to-Ring Terminal Cable\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"3530\" data-end=\"3548\"\u003eApplications\u003c\/h3\u003e \u003cul data-start=\"3549\" data-end=\"3735\"\u003e \u003cli data-start=\"3549\" data-end=\"3585\"\u003e \u003cp data-start=\"3551\" data-end=\"3585\"\u003eOff-Grid Homes and Solar Systems\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3586\" data-end=\"3609\"\u003e \u003cp data-start=\"3588\" data-end=\"3609\"\u003eRVs and Camper Vans\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3610\" data-end=\"3646\"\u003e \u003cp data-start=\"3612\" data-end=\"3646\"\u003eMarine and Boating Power Systems\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3647\" data-end=\"3691\"\u003e \u003cp data-start=\"3649\" data-end=\"3691\"\u003eBackup Energy Storage for Homes or Shops\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"3692\" data-end=\"3735\"\u003e \u003cp data-start=\"3694\" data-end=\"3735\"\u003eCommercial and Industrial Power Modules\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e","brand":"BigBattery","offers":[{"title":"Default Title","offer_id":55064590319955,"sku":"Husky2.12","price":767.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/OIP_3_cd95a886-cead-431e-8784-95b555a4a04e.jpg?v=1790371597","url":"https:\/\/progradewarehouse.com\/products\/big-battery-husky-2-12v-400ah-5-12kwh-lifepo4-battery","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}