{"product_id":"renogy-20a-dc-dc-battery-charger","title":"Renogy 20A DC-DC On-Board Battery Charger","description":"\u003ch2\u003eRenogy 20A DC-DC On-Board Battery Charger\u003c\/h2\u003e\n\u003cp\u003eThe Renogy 20A DC-DC charger lets your van or rig top up its house battery bank while you drive — no solar required. Connect it between your starter battery and your lithium or AGM house battery, and it automatically charges at up to 20A whenever the engine is running.\u003c\/p\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Current:\u003c\/strong\u003e 20A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Battery Types:\u003c\/strong\u003e LiFePO4, AGM, Gel, Flooded Lead-Acid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Profiles:\u003c\/strong\u003e Multiple — set to match your battery type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Over-voltage, over-current, reverse polarity, short circuit\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 You Need a DC-DC Charger\u003c\/h3\u003e\n\u003cp\u003eModern vehicles with smart alternators reduce voltage when they detect a full starter battery — which means a simple battery-to-battery connection won't fully charge your house bank. A DC-DC charger regulates the input and outputs a proper multi-stage charge profile, protecting your lithium battery and ensuring a complete charge on every drive.\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\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/RBC20D1U-G1-US_manual.pdf?v=1775767803\" target=\"_blank\"\u003eOwner's Manual\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 Start 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":51735910645892,"sku":"RBC20D1U-G1-US","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/3968\/9348\/files\/01__46833.1751961866.1280.1280.webp?v=1775767728","url":"https:\/\/trailvault.co\/products\/renogy-20a-dc-dc-battery-charger","provider":"TrailVault","version":"1.0","type":"link"}