{"product_id":"foxsur-batteriladdare-fbc122408d","title":"FOXSUR FBC122408D 12V\/8A and 24V\/4A LiFePO4 Battery Charger","description":"\u003cdiv lang=\"sv\" class=\"product-copy\"\u003e\n\u003c!-- Kortversion (200–300 ord) --\u003e\n\u003csection id=\"sammanfattning-kort\"\u003e\n\u003ch2\u003eQuick Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOXSUR FBC122408D – 12 V\/8 A \u0026amp; 24 V\/4 A Smart Battery Charger\u003c\/strong\u003e is an \u003cem\u003eautomatic multi-function charger\u003c\/em\u003e for both \u003cstrong\u003elead-acid\u003c\/strong\u003e (Flooded\/Wet, AGM, GEL, VRLA, Calcium etc.) and \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e batteries. It automatically switches between \u003cstrong\u003e12 V\u003c\/strong\u003e and \u003cstrong\u003e24 V\u003c\/strong\u003e systems, delivers up to \u003cstrong\u003e8 A\u003c\/strong\u003e at 12 V and \u003cstrong\u003e4 A\u003c\/strong\u003e at 24 V, and is built for safe, efficient everyday charging and maintenance charging in garages and workshops. Smart electronics handle starting voltage, current limiting, and maintenance, while protection routines help prevent faults and extend battery life.\u003c\/p\u003e\n\u003cp\u003eThe charger features \u003cstrong\u003euniversal input\u003c\/strong\u003e (100–240 VAC) and up to \u003cstrong\u003e150 W\u003c\/strong\u003e power under load. It requires a minimum of \u003cstrong\u003e≈5.0 V\u003c\/strong\u003e on the battery to start charging (no \"zero-voltage rescue\"). \u003cem\u003eUnloaded output voltage\u003c\/em\u003e is stated to be approx. \u003cstrong\u003e13.8 V\u003c\/strong\u003e. For LiFePO\u003csub\u003e4\u003c\/sub\u003e, you should always \u003cstrong\u003echeck the battery manufacturer's specifications\u003c\/strong\u003e (BMS, recommended charging voltage, temperature limits) before charging. Ventilate the charging area – \u003cem\u003elead-acid batteries can emit explosive gases\u003c\/em\u003e.\u003c\/p\u003e\n\u003cp\u003eWith this model, you get a \u003cstrong\u003estable, simple, and affordable\u003c\/strong\u003e charger for everything from motorcycles and passenger cars to smaller 24 V systems. In the guide below, you will find a \u003cstrong\u003ecomplete step-by-step manual\u003c\/strong\u003e, safety advice, \u003cstrong\u003eFAQ\u003c\/strong\u003e, troubleshooting, tips, and \u003cstrong\u003ecapacity guidelines\u003c\/strong\u003e (Ah) for choosing the right charging time and method. If you want to deepen your diagnostics, we recommend supplementing with a battery tester (CCA\/SOH) and voltage logger.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- H1 med huvudnyckelord --\u003e\n\u003ch2 id=\"top\"\u003eFOXSUR FBC122408D – 12 V\/8 A \u0026amp; 24 V\/4 A LiFePO\u003csub\u003e4\u003c\/sub\u003e \u0026amp; Lead-Acid Smart Battery Charger (Automatic 12\/24 V)\u003c\/h2\u003e\n\u003c!-- Innehållsförteckning \/ ankarlänkar --\u003e\u003cnav aria-label=\"Innehåll\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"#introduktion\"\u003eIntroduction\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specifikationer\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#funktioner\"\u003eFeatures \u0026amp; Applications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fordelar\"\u003eBenefits\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#kompatibilitet\"\u003eCompatibility \u0026amp; Battery Size\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#manual\"\u003eManual – Step-by-Step\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#laddstrategi\"\u003eCharging Strategy \u0026amp; Charging Times\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#lifepo4\"\u003eSpecific Advice for LiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tips\"\u003eTips \u0026amp; Best Practices\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#felsokning\"\u003eTroubleshooting\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eFrequently Asked Questions (FAQ)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#forpackning\"\u003ePackage Contents\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#ansvar\"\u003eDisclaimer \u0026amp; Safety\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#sammanfattning-lang\"\u003eSummary\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c!-- Introduktion --\u003e\n\u003csection id=\"introduktion\"\u003e\n\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOXSUR FBC122408D\u003c\/strong\u003e is a \u003cem\u003esmart and automatic\u003c\/em\u003e battery charger for both \u003cstrong\u003e12 V\u003c\/strong\u003e and \u003cstrong\u003e24 V\u003c\/strong\u003e systems. It is designed for modern \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e batteries (with built-in BMS) and classic \u003cstrong\u003elead-acid\u003c\/strong\u003e chemistries (Flooded\/Wet, AGM, GEL, VRLA, Calcium etc.). The charger is ideally suited for home garages, shops\/workshops, and for seasonal vehicles such as motorcycles, ATVs, snowmobiles, boats (starting bank), passenger cars, and smaller 24 V applications.\u003c\/p\u003e\n\u003cp\u003eThe electronics automatically switch between 12 V and 24 V and deliver up to \u003cstrong\u003e8 A\u003c\/strong\u003e (12 V) or \u003cstrong\u003e4 A\u003c\/strong\u003e (24 V). The smart automatic system provides gentle charging and maintenance, while minimizing the risk of overcharging. The charger requires at least \u003cstrong\u003e≈5.0 V\u003c\/strong\u003e on the battery to start (no \"0 V rescue\"), which is important to know for heavily discharged batteries.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Specifikationer --\u003e\n\u003csection id=\"specifikationer\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e FOXSUR FBC122408D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Smart \u0026amp; Automatic Battery Charger\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input:\u003c\/strong\u003e 100–240 VAC, 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Voltage:\u003c\/strong\u003e 12 V \/ 24 V (auto-detection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Output Current:\u003c\/strong\u003e 12 V \u003cstrong\u003e8 A\u003c\/strong\u003e, 24 V \u003cstrong\u003e4 A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnloaded Output Voltage:\u003c\/strong\u003e approx. \u003cstrong\u003e13.8 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Start Voltage:\u003c\/strong\u003e \u0026gt; \u003cstrong\u003e5.0 V\u003c\/strong\u003e (required on the battery for the charger to start working)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Power (loaded):\u003c\/strong\u003e up to \u003cstrong\u003e150 W\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Power (unloaded):\u003c\/strong\u003e approx. \u003cstrong\u003e3.5 W\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Chemistries:\u003c\/strong\u003e Lead-acid (Flooded\/Wet, AGM, GEL, VRLA, Calcium etc.), \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Features:\u003c\/strong\u003e Smart control for charging\/maintenance (steps may vary with firmware)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsage:\u003c\/strong\u003e Indoor\/dry environment, good ventilation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eImportant:\u003c\/em\u003e Always check the battery manufacturer's specifications (especially for LiFePO\u003csub\u003e4\u003c\/sub\u003e) before charging.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Funktioner \u0026 användningsområden --\u003e\n\u003csection id=\"funktioner\"\u003e\n\u003ch2\u003eFeatures \u0026amp; Applications\u003c\/h2\u003e\n\u003ch3\u003eCore Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic 12\/24 V detection:\u003c\/strong\u003e automatically switches to the correct system voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual current capacity:\u003c\/strong\u003e up to 8 A (12 V) \/ 4 A (24 V) for efficient charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart control:\u003c\/strong\u003e intelligent control and maintenance charging reduce the risk of overcharging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e support:\u003c\/strong\u003e designed for LiFePO\u003csub\u003e4\u003c\/sub\u003e with BMS – follow the battery's data spec.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal mains voltage:\u003c\/strong\u003e 100–240 VAC for home\/workshop and travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart voltage control:\u003c\/strong\u003e starts when the battery is \u0026gt;≈5.0 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy efficient:\u003c\/strong\u003e low standby (~3.5 W), high efficiency during charging (up to 150 W input).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V lead-acid:\u003c\/strong\u003e Motorcycle, moped, ATV, snowmobile, passenger car, small leisure banks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V LiFePO\u003csub\u003e4\u003c\/sub\u003e:\u003c\/strong\u003e starter\/leisure batteries with BMS (according to manufacturer's approval).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 V lead-acid:\u003c\/strong\u003e smaller 24 V systems (e.g., some boats, smaller machinery).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Fördelar --\u003e\n\u003csection id=\"fordelar\"\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-round:\u003c\/strong\u003e charges both 12 V and 24 V, lead-acid and LiFePO\u003csub\u003e4\u003c\/sub\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe \u0026amp; simple:\u003c\/strong\u003e automatic control, maintenance, and clear workflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient:\u003c\/strong\u003e 8 A\/4 A provides reasonable charging times for typical battery sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle:\u003c\/strong\u003e smart control reduces wear and extends battery life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible:\u003c\/strong\u003e universal AC input and compact form factor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Kompatibilitet \u0026 batteristorlek --\u003e\n\u003csection id=\"kompatibilitet\"\u003e\n\u003ch2\u003eCompatibility \u0026amp; Battery Size\u003c\/h2\u003e\n\u003cp\u003eThe charger supports \u003cstrong\u003elead-acid\u003c\/strong\u003e (Flooded\/Wet, AGM, GEL, VRLA, Calcium etc.) and \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e (with BMS). For best results, the charging current should typically be around \u003cem\u003e0.1 C\u003c\/em\u003e (10% of the battery's Ah capacity), but 0.05–0.2 C often works well depending on chemistry and manufacturer. See \u003cem\u003eguidelines\u003c\/em\u003e below:\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #e5e7eb; border-radius: .5rem; padding: 1rem;\" aria-label=\"Riktvärden\" role=\"note\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V \/ 8 A:\u003c\/strong\u003e ideally approx. \u003cstrong\u003e40–80 Ah\u003c\/strong\u003e. Also works for 20–110 Ah with longer\/shorter times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 V \/ 4 A:\u003c\/strong\u003e ideally approx. \u003cstrong\u003e40–60 Ah\u003c\/strong\u003e. Also works around 20–80 Ah depending on requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: .5rem 0 0 0;\"\u003e\u003cem\u003eNote!\u003c\/em\u003e These are \u003cstrong\u003eguidelines\u003c\/strong\u003e. Always follow the battery manufacturer's recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Manual – steg-för-steg --\u003e\n\u003csection id=\"manual\"\u003e\n\u003ch2\u003eManual – Step-by-Step 🔧\u003c\/h2\u003e\n\u003ch3\u003eImportant before starting\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Lead-acid batteries can emit explosive gases. Charge in a well-ventilated area, no sparks\/open flames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspection:\u003c\/strong\u003e Do not charge frozen, damaged, or leaking batteries. Clean terminals\/cable lugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification:\u003c\/strong\u003e Verify that the battery is \u003cstrong\u003e12 V\u003c\/strong\u003e or \u003cstrong\u003e24 V\u003c\/strong\u003e and of a \u003cstrong\u003esupported chemistry\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e:\u003c\/strong\u003e Check BMS requirements, permitted voltages\/temperatures, and manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuick Start\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the battery:\u003c\/strong\u003e ensure the chemistry is supported and the battery is \u0026gt;≈\u003cstrong\u003e5.0 V\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect clamps:\u003c\/strong\u003e \u003cspan title=\"plus\" aria-label=\"plus\"\u003ered\u003c\/span\u003e to \u003cstrong\u003e+\u003c\/strong\u003e, \u003cspan title=\"minus\" aria-label=\"minus\"\u003eblack\u003c\/span\u003e to \u003cstrong\u003e−\u003c\/strong\u003e. Do not place the charger on top of the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect mains voltage:\u003c\/strong\u003e connect the charger to 100–240 VAC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic:\u003c\/strong\u003e the charger detects 12\/24 V and begins charging\/maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitor:\u003c\/strong\u003e follow display\/indication (level, voltage\/current if available).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompletion:\u003c\/strong\u003e when the battery is full, let it stand in maintenance mode for a while, then disconnect the \u003cem\u003eAC\u003c\/em\u003e and remove the clamps (black → red).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003ePost-charging routines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLet the battery rest for 1–2 hours and measure the resting voltage (lead-acid ≈12.6–12.8 V full; LiFePO\u003csub\u003e4\u003c\/sub\u003e resting level is BMS\/chemistry-dependent).\u003c\/li\u003e\n\u003cli\u003eFor seasonal storage: repeat maintenance charging according to the manufacturer's advice.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Laddstrategi \u0026 tider --\u003e\n\u003csection id=\"laddstrategi\"\u003e\n\u003ch2\u003eCharging Strategy \u0026amp; Typical Charging Times\u003c\/h2\u003e\n\u003cp\u003eThe charger is \u003cstrong\u003esmart \u0026amp; automatic\u003c\/strong\u003e and operates in \u003cem\u003econtrolled steps\u003c\/em\u003e (typically \u003cabbr title=\"Constant Current\"\u003eCC\u003c\/abbr\u003e, \u003cabbr title=\"Constant Voltage\"\u003eCV\u003c\/abbr\u003e, and float\/maintenance; exact steps may vary with firmware). This provides efficient filling, gentle absorption phase, and safe long-term maintenance.\u003c\/p\u003e\n\u003ch3\u003eRough guidelines for charging time (from approx. 50% SoC, healthy battery)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V 40 Ah @ 8 A:\u003c\/strong\u003e ~3–4 hours to high level + absorption\/maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 V 70 Ah @ 8 A:\u003c\/strong\u003e ~5–7 hours + absorption\/maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 V 40 Ah @ 4 A:\u003c\/strong\u003e ~5–8 hours + absorption\/maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTimes are affected by battery condition, temperature, start-SoC, and chemistry. Deeply discharged or aged batteries take longer.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- LiFePO4 särskilda råd --\u003e\n\u003csection id=\"lifepo4\"\u003e\n\u003ch2\u003eSpecific Advice for LiFePO\u003csub\u003e4\u003c\/sub\u003e 🔋\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS:\u003c\/strong\u003e ensure that the battery's BMS allows charging with this charger (voltage levels, current limits, temperature).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow temp:\u003c\/strong\u003e many LiFePO\u003csub\u003e4\u003c\/sub\u003e should \u003cem\u003enot\u003c\/em\u003e be charged below 0 °C (unless specifically supported by BMS). Follow the manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero voltage:\u003c\/strong\u003e if the BMS has shut down the battery to a 0 V-like level, the charger will not start (requires \u0026gt;≈5.0 V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance:\u003c\/strong\u003e after full charge, maintenance mode can help BMS balancing (if the BMS supports it).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Tips \u0026 bästa praxis --\u003e\n\u003csection id=\"tips\"\u003e\n\u003ch2\u003eTips \u0026amp; Best Practices 💡\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean contacts:\u003c\/strong\u003e low contact resistance provides faster and more even charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable routing:\u003c\/strong\u003e avoid pinching\/crossing cables over moving parts or sharp edges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e seasonal vehicles benefit from periodic maintenance charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument:\u003c\/strong\u003e note resting voltage before\/after – a good indicator of battery condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold\/heat:\u003c\/strong\u003e cold batteries charge slower; warm environments require extra ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge bank:\u003c\/strong\u003e for very large Ah banks, a more powerful charger might be better for time efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Felsökning --\u003e\n\u003csection id=\"felsokning\"\u003e\n\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo start:\u003c\/strong\u003e check AC outlet, fuse, and that the battery is \u0026gt;≈5.0 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery long time:\u003c\/strong\u003e the battery may be aged\/sulfated or too large for 8 A\/4 A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGets warm:\u003c\/strong\u003e some heat is normal. Ensure the charger is in a free and ventilated area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupts early:\u003c\/strong\u003e check cabling, clamps, and that the battery's BMS (LiFePO\u003csub\u003e4\u003c\/sub\u003e) is not cutting out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0 V or near:\u003c\/strong\u003e the charger will not start. Pre-charge carefully according to the battery manufacturer's advice or submit for testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnusual smell\/gas:\u003c\/strong\u003e discontinue immediately, ventilate, check battery condition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FAQ --\u003e\n\u003csection id=\"faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003ch3\u003eWhich batteries are supported?\u003c\/h3\u003e\n\u003cp\u003e12\/24 V \u003cstrong\u003elead-acid\u003c\/strong\u003e (Flooded\/Wet, AGM, GEL, VRLA, Calcium etc.) and \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e (with BMS). Always check the battery manufacturer's specifications.\u003c\/p\u003e\n\u003ch3\u003eDoes the charger switch automatically between 12 V and 24 V?\u003c\/h3\u003e\n\u003cp\u003eYes, it automatically detects the system voltage.\u003c\/p\u003e\n\u003ch3\u003eWill it start completely dead batteries?\u003c\/h3\u003e\n\u003cp\u003eNo. The minimum starting voltage is \u0026gt;≈\u003cstrong\u003e5.0 V\u003c\/strong\u003e. For lower voltages, a different procedure is required according to the battery manufacturer.\u003c\/p\u003e\n\u003ch3\u003eCan I use the charger for permanent maintenance?\u003c\/h3\u003e\n\u003cp\u003eYes, in normal room temperature and a well-ventilated area. Follow the battery manufacturer's guidelines for long-term charging.\u003c\/p\u003e\n\u003ch3\u003eIs 8 A sufficient for car batteries?\u003c\/h3\u003e\n\u003cp\u003eFor many 40–80 Ah 12 V batteries, 8 A is a good level. Larger batteries can be charged, but it will take longer.\u003c\/p\u003e\n\u003ch3\u003eDoes it also apply to Li-ion (NMC\/NCA) or LTO?\u003c\/h3\u003e\n\u003cp\u003eNo, this product is intended for \u003cstrong\u003elead-acid\u003c\/strong\u003e and \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e. Other lithium chemistries require specific charging.\u003c\/p\u003e\n\u003ch3\u003eWhy is 13.8 V indicated unloaded?\u003c\/h3\u003e\n\u003cp\u003eThis is a statement about the output voltage without load. During actual charging, the electronics control the voltage\/current according to the selected strategy.\u003c\/p\u003e\n\u003ch3\u003eCan I charge the battery while it's still in the car?\u003c\/h3\u003e\n\u003cp\u003eOften yes, but follow the vehicle manufacturer's advice (especially with sensitive electronics). Ventilate the area.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Förpackningsinnehåll --\u003e\n\u003csection id=\"forpackning\"\u003e\n\u003ch2\u003ePackage Contents 📦\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × FOXSUR FBC122408D battery charger (12 V\/8 A \u0026amp; 24 V\/4 A)\u003c\/li\u003e\n\u003cli\u003e1 × User Manual\u003c\/li\u003e\n\u003cli\u003e1 × Packaging box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote!\u003c\/em\u003e Minor variations may occur between batches\/markets.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Ansvarsfriskrivning \u0026 säkerhet --\u003e\n\u003csection id=\"ansvar\"\u003e\n\u003ch2\u003eDisclaimer \u0026amp; Safety ⚠️\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Lead-acid batteries can emit explosive gases. Ventilate and avoid sparks\/open flames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Battery acid is corrosive – rinse immediately upon skin\/eye contact and seek medical attention if needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Do not expose the charger to direct sunlight or high heat. Do not charge frozen\/damaged batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlacement:\u003c\/strong\u003e Do \u003cem\u003enot\u003c\/em\u003e place the charger on top of the battery during charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Do \u003cem\u003enot\u003c\/em\u003e charge non-rechargeable batteries. Always follow the battery manufacturer's manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecifications:\u003c\/strong\u003e May change without prior notice. Images\/menus may vary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Sammanfattning (lång) --\u003e\n\u003csection id=\"sammanfattning-lang\"\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOXSUR FBC122408D\u003c\/strong\u003e is a \u003cem\u003eversatile, smart, and automatic\u003c\/em\u003e battery charger for both 12 V and 24 V systems – compatible with \u003cstrong\u003elead-acid\u003c\/strong\u003e and \u003cstrong\u003eLiFePO\u003csub\u003e4\u003c\/sub\u003e\u003c\/strong\u003e. With up to \u003cstrong\u003e8 A\u003c\/strong\u003e (12 V) and \u003cstrong\u003e4 A\u003c\/strong\u003e (24 V), automatic voltage detection, a requirement for \u0026gt;≈\u003cstrong\u003e5.0 V\u003c\/strong\u003e starting voltage, and efficient maintenance charging, you get a reliable solution for everyday use: from motorcycles and passenger cars to smaller 24 V applications. Follow the manual and the battery's own specifications, especially for LiFePO\u003csub\u003e4\u003c\/sub\u003e, and the FBC122408D will deliver reliable charging, season after season.\u003c\/p\u003e\n\u003cp\u003e\u003ca aria-label=\"Tillbaka till toppen\" href=\"#top\"\u003eBack to top ↑\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003csmall\u003eLast updated: November 24, 2025\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Foxsur","offers":[{"title":"Default Title","offer_id":54177158005004,"sku":"FEL-B0228-Y","price":28.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/4979\/6876\/files\/H5bfcf3b1ee3a4a37baaca6b14b9c9e90p.jpg?v=1771872911","url":"https:\/\/www.felkodslasare.se\/en-en\/products\/foxsur-batteriladdare-fbc122408d","provider":"Felkodsläsare","version":"1.0","type":"link"}