{"product_id":"renogy-40a-dc-dc-battery-charger-mppt","title":"Renogy 40A DC-DC On-Board Battery Charger with MPPT","description":"\u003ch2\u003eRenogy 40A DC-DC On-Board Battery Charger with MPPT\u003c\/h2\u003e\n\u003cp\u003eThe best of both worlds for van builders and overlanders — a 40A DC-DC charger that handles alternator charging AND includes a built-in MPPT solar charge controller. One unit manages both your driving charge and your solar input, simplifying your electrical system without sacrificing capability.\u003c\/p\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC-DC Charge Current:\u003c\/strong\u003e 40A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPPT Solar Input:\u003c\/strong\u003e Up to 660W at 12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 12V alternator \/ 12–36V solar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Battery Types:\u003c\/strong\u003e LiFePO4, AGM, Gel, Flooded Lead-Acid, Calcium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Input:\u003c\/strong\u003e Alternator + solar simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Over-voltage, over-current, reverse polarity, short circuit, thermal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temp:\u003c\/strong\u003e -4°F to 131°F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy It's the Right Choice for Full-Time Builds\u003c\/h3\u003e\n\u003cp\u003eAt 40A from the alternator plus solar input, this unit can put serious power into your battery bank on driving days — and keep charging from panels when you're parked. The built-in MPPT controller means you don't need a separate charge controller for smaller solar arrays, saving money and wiring complexity.\u003c\/p\u003e\n\u003cp style=\"margin-top: 20px;\"\u003e\u003cstrong\u003eNot sure what size you need?\u003c\/strong\u003e Use our free \u003ca href=\"https:\/\/trailvault.co\/pages\/power-station-size-calculator\"\u003ePower Station Size Calculator\u003c\/a\u003e to get a personalized recommendation in under 2 minutes.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/RBC40D1S-G1_QUICKGUIDE.pdf?v=1775767815\" target=\"_blank\"\u003eQuick Start Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/QG_RENOGY_2012V_2020A40A_20Battery_20Charger_A0.pdf?v=1775767802\" target=\"_blank\"\u003eQuick Guide (20A\/40A)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/Renogy-Warranty.pdf\" target=\"_blank\"\u003eRenogy Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51735910678660,"sku":"RBC40D1S-G1-US","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/RBC40D1S-_01__81701.jpg?v=1775767356","url":"https:\/\/trailvault.co\/products\/renogy-40a-dc-dc-battery-charger-mppt","provider":"TrailVault","version":"1.0","type":"link"}