{"product_id":"renogy-30a-dc-dc-mppt-battery-charger-12v-dual-input-onboard-charger-with-multi-chemistry-support","title":"Renogy 30A DC-DC MPPT Battery Charger 12V — Dual-Input Onboard Charger with Multi‑Chemistry Support","description":"\u003cstrong\u003eRenogy Smart 30A DC-DC MPPT Battery Charger is a compact dual-input on-board charger that efficiently charges a service battery from an alternator and\/or solar panels while protecting multiple battery chemistries.\u003c\/strong\u003e\n\n\u003cp\u003eWhether you convert a van, outfit an RV, or maintain a marine dual-battery setup, the Renogy Smart 30A DC-DC MPPT charger gives you flexible, multi-stage charging and built-in protections in a space-saving package. It accepts both alternator (starting battery) input and solar input simultaneously, uses MPPT to extract the most energy from solar panels, and supports Flooded, Gel, AGM and Lithium battery chemistries. The unit also includes communications options for real-time monitoring when paired with Renogy accessories.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this charger manage charging from both alternator and solar simultaneously?\u003c\/h3\u003e\n\u003cp\u003eThe Renogy 30A DC-DC charger intelligently handles two power sources at once. When both the alternator and solar are available, the charger prioritizes solar to maximize renewable input, while still allowing alternator power to contribute when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrioritizes solar MPPT input when both sources are active\u003c\/li\u003e\n  \u003cli\u003eCombines inputs to maintain service battery voltage and state of charge\u003c\/li\u003e\n  \u003cli\u003eAutomatically switches charge stages (Bulk, Boost, Float)\u003c\/li\u003e\n  \u003cli\u003eHelps reduce fuel consumption by using more solar energy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat battery types and charging profiles are supported?\u003c\/h3\u003e\n\u003cp\u003eThis charger offers multi-chemistry presets and a three-stage charging profile to safely bring different battery types to full charge. You can select or program settings appropriate for Flooded, Gel, AGM, and Lithium (LiFePO4) batteries to ensure correct voltages and absorption times.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree-stage charging: Bulk, Boost\/Absorption, Float\u003c\/li\u003e\n  \u003cli\u003ePresets for Flooded, Gel, AGM, and Lithium chemistries\u003c\/li\u003e\n  \u003cli\u003ePrevents overcharging with precise voltage regulation\u003c\/li\u003e\n  \u003cli\u003eAdaptable to varying battery capacities and states of charge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protections and durability features does it include for vehicle or marine use?\u003c\/h3\u003e\n\u003cp\u003eThe Renogy charger is built for rugged installations and includes a suite of safety features. Protections cover over-voltage, over-current, temperature, reverse polarity, reverse current, and isolation, making it suitable for rough environments on road or water.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIsolation and reverse-polarity protection for safe connections\u003c\/li\u003e\n  \u003cli\u003eOver-voltage\/current and thermal protections to prevent damage\u003c\/li\u003e\n  \u003cli\u003eDesigned to work with traditional and smart alternators\u003c\/li\u003e\n  \u003cli\u003eCompact, lightweight housing fits tight mounting locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow can I monitor and control the charger remotely?\u003c\/h3\u003e\n\u003cp\u003eThe unit features an RJ45\/RS485 communication port compatible with Renogy screens and the DC Home App. Adding the optional BT-2 Bluetooth module unlocks wireless monitoring and control through your phone, showing voltage, temperature and fault codes in real time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRS485 output for Renogy One and RMS-DCDC displays\u003c\/li\u003e\n  \u003cli\u003eBT-2 Bluetooth module (sold separately) for phone monitoring\u003c\/li\u003e\n  \u003cli\u003eReal-time tracking of voltage, temperature, and faults\u003c\/li\u003e\n  \u003cli\u003eRecommended ANL fuse (40A) to protect wiring and components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: If you need a compact, reliable DC-to-DC charger for vanlife, RVing, boating or off-grid day use where space is tight and power sources vary, the Renogy Smart 30A DC-DC MPPT charger is built to manage dual inputs, multiple battery types, and remote monitoring. It suits installers and DIYers looking for MPPT efficiency, robust safety features, and a small footprint for confined installations.\u003c\/p\u003e\n\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 charger charge LiFePO4 batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Renogy 30A DC-DC charger supports Lithium (LiFePO4) with a dedicated charging profile to ensure proper voltage and absorption stages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it work with both alternator and solar at the same time?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It accepts dual inputs and prioritizes solar MPPT while still allowing alternator contribution for reliable charging.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":48080672227486,"sku":"B093BB3PCV","price":285.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/renogy-front-panel-angled.jpg?v=1785783961","url":"https:\/\/northtrailauto.ca\/products\/renogy-30a-dc-dc-mppt-battery-charger-12v-dual-input-onboard-charger-with-multi-chemistry-support","provider":"North Trail Auto","version":"1.0","type":"link"}