{"product_id":"12v-to-28v-50a-step-up-converter-caravan-charging-booster","title":"12V to 28V 50A Step-Up Converter | Caravan Charging Booster","description":"\u003ch3\u003e\u003cstrong\u003eGet more from your existing caravan charging cable.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eStruggling to charge your caravan batteries while driving? Long cable runs and excessive voltage drop can leave your DC-DC charger without the supply it needs to charge effectively.\u003c\/p\u003e\n\u003cp\u003eThe Falcon 12V to 28V Step-Up Converter\u003cstrong\u003e \u003c\/strong\u003eraises the supply voltage before it travels from your tow vehicle to your caravan. Your compatible DC-DC charger then converts that supply into the correct charging voltage for your battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigher voltage means less current through the long cable run.\u003c\/strong\u003e For the same power, a 28V supply carries approximately half the current of a 14V supply, reducing voltage drop and heat lost in the wiring. Actual results depend on the installation and conversion losses.\u003c\/p\u003e\n\u003cp\u003eIn suitable installations, this can allow you to retain existing 8 AWG charging cable rather than replace the entire cable run, saving on materials and labour. Cable length, condition, connections and current capacity must still be checked—not every existing installation will be suitable.\u003c\/p\u003e\n\u003cp\u003eDesigned for use with compatible 12V DC-DC battery chargers up to 40A output. This converter supplies your charger; it does not replace it.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cbr\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal input voltage\u003c\/th\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput voltage\u003c\/th\u003e\n\u003ctd\u003e28V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConverter output rating\u003c\/th\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum DC-DC charger size for this application\u003c\/th\u003e\n\u003ctd\u003e40A output into a 12V battery system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRequired charger compatibility\u003c\/th\u003e\n\u003ctd\u003eVehicle-input operating range must accommodate 28V, including converter output tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBuilt-in on\/off switch\u003c\/th\u003e\n\u003ctd\u003eNone—external supply isolation required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe converter’s 50A output rating is not the battery charging current. The maximum charger size for this application is 40A.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCompatibility and Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the exact charger model.\u003c\/strong\u003e A “24V compatible” label or a high solar-input rating alone is not sufficient. The charger’s\u003cstrong\u003e \u003c\/strong\u003evehicle input must accept the converter’s output. REDARC BCDC1225D and BCDC1240D models specify a 9–32V input range, but complete system compatibility still needs checking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall at the vehicle end, after suitable supply isolation and before the long cable run.\u003c\/strong\u003e For the proposed VSR installation, this means the \u003cstrong\u003eload side of the voltage-sensitive relay\u003c\/strong\u003e. The 12V input wiring, relay and protection must handle the higher input current; only the boosted cable run benefits from the lower current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart-alternator vehicles require additional checks.\u003c\/strong\u003e A conventional VSR may disconnect when alternator voltage falls. This converter cannot maintain charging after its supply has been disconnected; the vehicle may require a different, suitably controlled isolation arrangement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003c\/em\u003e The boosted feed must be dedicated to compatible equipment. \u003cem\u003eDo not connect the 28V output directly to a 12V battery, fridge or other 12V-only accessories\u003c\/em\u003e\u003cstrong\u003e.\u003c\/strong\u003e Existing shared Anderson-plug circuits must be checked before conversion.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eInstallation and cable suitability should be assessed by a qualified auto electrician.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Falcon Overland","offers":[{"title":"Default Title","offer_id":67833592185074,"sku":"sku-67647736807738","price":499.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5537\/7906\/files\/falcon-overland-12v-to-28v-50a-step-up-converter-angled-view.jpg?v=1792650176","url":"https:\/\/coldstart.co.nz\/products\/12v-to-28v-50a-step-up-converter-caravan-charging-booster","provider":"Coldstart 4x4 \u0026 Outdoors","version":"1.0","type":"link"}