{"product_id":"vufumsy-rv-power-converter-55a-120v-ac-to-12v-dc-charger-selectable-lead-acid-lifepo4-multi-stage","title":"VUFUMSY RV Power Converter 55A — 120V AC to 12V DC Charger, Selectable Lead‑Acid \u0026 LiFePO4 Multi‑Stage","description":"\u003cp\u003e\u003cstrong\u003eThe VUFUMSY RV Power Converter is a 55‑amp, 120V AC to 12V DC charger that supplies multi‑stage, selectable charging for lead‑acid and LiFePO4 batteries while protecting your RV electrical system.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact converter is designed as an on‑board power hub for RV owners who need reliable DC charging from shore power. It converts household 120V AC into a stable 12V DC output with a high 55A current capacity, adjustable voltage range, selectable battery chemistry modes, and built‑in safety features. The unit is meant to integrate directly into most RV 12V systems without major rewiring, making it a practical upgrade for boondockers, full‑timers, and weekend travelers.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the VUFUMSY converter charge different battery types?\u003c\/h3\u003e\n\u003cp\u003eThe converter includes selectable charging modes to match common battery chemistries. Switch between lead‑acid and LiFePO4 (LiFePO4 mode) so charging profiles align with battery requirements, and adjust voltage from 13V to 16.5V to fine‑tune charge behavior.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLead‑acid mode with multi‑stage charging to reduce gassing and extend life\u003c\/li\u003e\n  \u003cli\u003eLiFePO4 mode with appropriate voltage limits and charge stages\u003c\/li\u003e\n  \u003cli\u003eVoltage adjustable between 13.0V and 16.5V to suit specific battery needs\u003c\/li\u003e\n  \u003cli\u003eRecommended minimum battery sizes: lead‑acid ≥300Ah, lithium ≥100Ah\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat charging performance and cooling features can I expect?\u003c\/h3\u003e\n\u003cp\u003eThis unit delivers up to 55A of charging current for faster replenishment of your battery bank. The housing pairs heat‑dissipating materials with a metal chassis and an intelligent cooling fan to keep temperatures stable under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh‑current 55A output for quicker recharge cycles\u003c\/li\u003e\n  \u003cli\u003eMetal case and thermal materials to move heat away from electronics\u003c\/li\u003e\n  \u003cli\u003eSmart fan control that runs as needed to reduce noise and conserve energy\u003c\/li\u003e\n  \u003cli\u003eBuilt‑in fuses (4 total, 2 pre‑installed) protect against failures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protections and safety features are built in?\u003c\/h3\u003e\n\u003cp\u003eSafety is addressed with multiple automatic protections to prevent damage to the converter and connected batteries. The unit detects and responds to common electrical faults while providing replaceable fuse protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShort circuit, overload, over‑temperature automatic shutdown\u003c\/li\u003e\n  \u003cli\u003eUnder‑voltage and over‑voltage defense to prevent improper charging\u003c\/li\u003e\n  \u003cli\u003eReverse polarity protection to guard against incorrect DC wiring\u003c\/li\u003e\n  \u003cli\u003eAccessible fuses for quick field replacement—two pre‑installed, two spare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what wiring do I need?\u003c\/h3\u003e\n\u003cp\u003eVUFUMSY designed the converter for fast, straightforward installation without complex rewiring: most users can finish mounting and connections in around ten minutes. For safe 55A operation, use pure copper wiring sized 6 AWG or larger for DC runs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo full system rewiring required for typical RV installations\u003c\/li\u003e\n  \u003cli\u003eDC wiring must be 6 AWG or larger, pure copper, for full 55A capacity\u003c\/li\u003e\n  \u003cli\u003eOptimized cable lengths included to simplify placement in cabinets or compartments\u003c\/li\u003e\n  \u003cli\u003eClearly labeled terminals and mounting points speed installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The VUFUMSY 55A RV Power Converter is aimed at RV owners who depend on shore power or generator charging and want a robust, selectable charger that supports both lead‑acid and LiFePO4 battery banks. It’s ideal for travelers upgrading an aging converter, owners expanding their battery capacity, and users who need faster charging with comprehensive safety features. Note: batteries are not included; ensure your battery bank meets the recommended amp‑hour minima and install with proper 6 AWG copper DC wiring for safe full‑rate operation.\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 converter charge LiFePO4 batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It has a LiFePO4 charging mode and adjustable voltage (13–16.5V); minimum recommended lithium capacity is 100Ah.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What gauge wire do I need for full 55A output?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use pure copper 6 AWG or larger for the DC wiring to safely handle 55A continuous charging.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"VUFUMSY","offers":[{"title":"Default Title","offer_id":48084299284638,"sku":"B0GK1S5J49","price":105.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/vufumsy-front-view-unit-mounted.jpg?v=1785849437","url":"https:\/\/northtrailauto.ca\/products\/vufumsy-rv-power-converter-55a-120v-ac-to-12v-dc-charger-selectable-lead-acid-lifepo4-multi-stage","provider":"North Trail Auto","version":"1.0","type":"link"}