{"product_id":"power-queen-12v-20a-lifepo4-battery-charger-14-6v-smart-cc-cv-pre-charge-active-cooling","title":"power queen 12V 20A LiFePO4 Battery Charger — 14.6V Smart CC\/CV, Pre‑Charge \u0026 Active Cooling","description":"\u003cp\u003e\u003cstrong\u003ePower Queen 12V 20A LiFePO4 Battery Charger is a dedicated 14.6V smart charger that fast-charges 12.8V LiFePO4 batteries with a 2-stage CC\/CV algorithm and built-in safety protections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis charger is engineered specifically for LiFePO4 battery chemistry, offering a 20A constant-current output and a 14.6V constant-voltage finish to recharge 12V (12.8V nominal) lithium iron phosphate packs quickly and safely. Its pre-charge capability can wake batteries down to 0V and its aluminum housing plus active cooling help maintain reliable operation during extended charging. The unit accepts 100–240V AC input, making it suitable for home, workshop, or mobile setups worldwide.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this charger safely recharge deeply discharged LiFePO4 batteries?\u003c\/h3\u003e\n\u003cp\u003eThe Power Queen charger implements a tailored two-stage CC\/CV profile and a pre-charge routine that gradually applies current to batteries at very low voltages. Multiple protections monitor temperature, polarity, short circuits, and output voltage to reduce the risk of damage from improper connection or environmental stress.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-charge mode enables recovery of batteries reading down to 0V.\u003c\/li\u003e\n  \u003cli\u003eCC\/CV algorithm: 20A constant current, then 14.6V constant voltage finish.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in protections: over-temperature, short-circuit, reverse polarity, over-voltage.\u003c\/li\u003e\n  \u003cli\u003eCooling fan and aluminum alloy body for stable heat dissipation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow fast will it recharge my LiFePO4 battery compared to small trickle chargers?\u003c\/h3\u003e\n\u003cp\u003eAt 20A output the charger dramatically shortens recharge time versus low-amp multi-chemistry chargers. For example, a 100Ah LiFePO4 battery can reach full charge in roughly five hours under ideal conditions, compared with many low-current chargers that take multiple days.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e20A constant current reduces bulk-charge time significantly.\u003c\/li\u003e\n  \u003cli\u003eApproximately 5 hours to fill a 12V 100Ah LiFePO4 battery from low state of charge.\u003c\/li\u003e\n  \u003cli\u003eFar faster than typical 3A chargers, which need many tens of hours.\u003c\/li\u003e\n  \u003cli\u003eSmart CV stage prevents overcharging and topping-off inefficiencies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and operational features should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe charger is plug-and-play for AC supply, paired to batteries via output leads, and includes LED status indicators showing charging phases. Its compact aluminum housing resists corrosion, and the internal cooling fan keeps temperatures down during sustained use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated input: 100–240V AC, 50–60Hz for global compatibility.\u003c\/li\u003e\n  \u003cli\u003eLED indicators display charging stage and status at a glance.\u003c\/li\u003e\n  \u003cli\u003eDurable anodized aluminum case with active fan cooling.\u003c\/li\u003e\n  \u003cli\u003eOutput leads and connectors designed for secure battery attachment and polarity protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this charger work with my 12V LiFePO4 system and help prolong battery life?\u003c\/h3\u003e\n\u003cp\u003eYes — because it follows LiFePO4-specific charging parameters (14.6V CV limit and appropriate current), it reduces stress that can shorten battery life compared with improper charging profiles. The safety features and controlled thermal management further support long-term, reliable cycling when used as recommended.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpecifically tuned for 12.8V LiFePO4 chemistry, not generic lead-acid profiles.\u003c\/li\u003e\n  \u003cli\u003eProtections reduce risk of charging faults that accelerate wear.\u003c\/li\u003e\n  \u003cli\u003eControlled CV termination avoids overvoltage stress.\u003c\/li\u003e\n  \u003cli\u003ePre-charge capability helps recover and stabilize low-voltage cells safely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Installers, van-lifers, RV owners, boat owners, small off-grid system users, and anyone who maintains 12.8V LiFePO4 battery banks and needs a reliable, faster-charging, chemistry-specific solution. It suits users who require global AC compatibility, clear charging status, and built-in safety features to protect both charger and battery during routine and recovery charging.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this charger revive a LiFePO4 battery reading 0V?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It has a pre-charge function that can apply current to batteries down to 0V to reactivate compatible LiFePO4 BMS systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Power Queen charger safe to leave connected overnight?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The charger uses CC\/CV control with monitoring and multiple protections to prevent over-voltage and overheating during extended charging.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"power queen","offers":[{"title":"Default Title","offer_id":55171142517079,"sku":"B09MKL2LCX","price":117.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/power-queen-front-view-charger.jpg?v=1790439043","url":"https:\/\/britishgarage.co.uk\/products\/power-queen-12v-20a-lifepo4-battery-charger-14-6v-smart-cc-cv-pre-charge-active-cooling","provider":"British Garage","version":"1.0","type":"link"}