{"product_id":"wf-9855-55-amp-rv-power-converter-for-lithium-battery-reliable","title":"WF-9855 55 Amp RV Power Converter for Lithium Battery - Reliable","description":"\u003cp\u003eIn this review the WF-9855 55 Amp RV Power Converter is evaluated for owners who run lithium house batteries in their RVs. The bottom line: it is a focused replacement or upgrade for WF-9800 series installations that need a converter designed specifically for lithium chemistry, with a clear benefit being its \u003cstrong\u003ethree-stage charging\u003c\/strong\u003e that brings a 12V system up to 14.6V then holds in a trickle state to maintain health and prolong battery life.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for lithium battery:\u003c\/strong\u003e Built to be compatible with WF-9855, WF-9855-AD, WF-9855-LIS and other WF-9800 series units so it fits common RV converter form factors and wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-stage charging:\u003c\/strong\u003e Raises battery voltage to 14.6V then shifts to reduced power trickle mode to keep lithium cells topped without overcharging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh output capacity:\u003c\/strong\u003e Delivers up to 55 amps at 14.6V (950 watts) to support multiple loads and recharge larger house banks on the road.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive protections:\u003c\/strong\u003e Built-in overcharge, overvoltage, overcurrent, high temperature and short-circuit protections protect both battery and RV wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet cooling:\u003c\/strong\u003e A temperature-controlled fan with a quieter motor reduces noise and runs only when needed to manage heat efficiently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer support:\u003c\/strong\u003e Backed by a 2-year free warranty from the maker, which helps with confidence during installation and early use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis converter is aimed at RV owners who have switched to or purchased lithium 12V house batteries and need a drop-in compatible charger for the WF-9800 family. It is a good fit for those who want a robust 55 amp supply to support appliances and to recharge battery banks reasonably quickly while parked or plugged in.\u003c\/p\u003e\n\u003cp\u003eIt is less suited to users who still rely on lead-acid specific charging profiles or who require integrated inverter\/charger combos; those buyers should seek a unit tailored to lead-acid settings or a combined inverter solution instead.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpecific lithium profile and \u003cstrong\u003ethree-stage charging\u003c\/strong\u003e help extend lithium battery life and maintain charge.\u003c\/li\u003e\n\u003cli\u003eStrong 55 amp output and 950 watt power rating support heavier RV loads and faster recharge.\u003c\/li\u003e\n\u003cli\u003eMultiple safety protections provide peace of mind for wiring and battery protection.\u003c\/li\u003e\n\u003cli\u003eQuiet, demand-controlled fan reduces audible noise compared to similar chargers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot intended for lead-acid charge profiles, so users with non-lithium banks must choose a different converter or risk improper charging.\u003c\/li\u003e\n\u003cli\u003eInstallation requires compatibility with WF-9800 series form factor and wiring, so exact fitment should be confirmed before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e950 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e55 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e14.6 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e105-130 VAC, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eQuiet, temperature-controlled fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eOvercharge, overvoltage, overcurrent, high temp, short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-year free warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe WF-9855 55 Amp converter is a practical, value-minded choice for RV owners running lithium house batteries who need a WF-9800 series compatible unit. Its dedicated \u003cstrong\u003elithium charging\u003c\/strong\u003e profile, solid 55 amp output and layered protections make it a reliable converter that balances performance with quiet operation and manufacturer support.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this unit charge lithium batteries correctly?\u003c\/strong\u003e\u003cbr\u003eYes, it uses a three-stage charge that raises voltage to 14.6V then shifts to trickle mode, which is the recommended approach for many lithium 12V systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the fan noisy during operation?\u003c\/strong\u003e\u003cbr\u003eThe converter uses a temperature-controlled, quieter motorized fan that runs only when needed and is reported to be noticeably quieter than many similar chargers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it replace other WF-9800 series converters?\u003c\/strong\u003e\u003cbr\u003eIt is compatible with WF-9855, WF-9855-AD, WF-9855-LIS and other WF-9800 series units, but confirm mechanical fit and wiring before installation.\u003c\/p\u003e","brand":"SUPLIFE","offers":[{"title":"Default Title","offer_id":48670574280923,"sku":"B0CNJX6S4M","price":144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71XZvUYshhL.__AC_SX300_SY300_QL70_FMwebp.webp?v=1778622857","url":"https:\/\/gearmusthave.com\/products\/wf-9855-55-amp-rv-power-converter-for-lithium-battery-reliable","provider":"GearMustHave","version":"1.0","type":"link"}