{"product_id":"renogy-40a-dc-dc-battery-charger-with-mppt","title":"Renogy 40A DC-DC Battery Charger with MPPT","description":"\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 32px; margin: 0 0 40px;\"\u003e\n\u003cdiv style=\"flex: 2 1 320px; min-width: 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0643\/9128\/2937\/files\/renogy-40a-dc-dc-mppt-battery-charger-in-black-aluminum-with-attached-wires-seen-from-the-front.jpg\" alt=\"Renogy 40A DC-DC MPPT battery charger in black aluminum with attached wires, seen from the front\" width=\"1239\" height=\"850\" style=\"display: block; width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 3 1 320px; min-width: 0; text-wrap: pretty;\"\u003e\n\u003ch2 style=\"margin-top: 0;\"\u003eThe Renogy 40A DC-DC Battery Charger with MPPT Charges Your 12V Battery From Your Alternator or Solar Panels\u003c\/h2\u003e\n\u003cp\u003eThe Renogy 40A DC-DC Battery Charger with MPPT charges a 12V house battery from your vehicle's starter battery or from solar panels. It draws from one source at a time and switches between them. DC input from the vehicle is the default, and you can press the SELECT button to give solar priority.\u003c\/p\u003e\n\u003cp\u003eIt is made for RVs, SUVs and boats where space is tight. The charger measures 7.68 x 5.87 x 1.89 in and charges AGM, Gel, Flooded and LiFePO4 batteries. Its cables come already attached, and the front panel has LEDs and one button, so there is no screen to learn.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003ch3\u003eRenogy 40A DC-DC Battery Charger with MPPT Features\u003c\/h3\u003e\n\u003ch4\u003eDC Input or Solar Input\u003c\/h4\u003e\n\u003cp\u003eThe charger charges from the starter battery by default. Press SELECT to switch to solar priority. Renogy says the charger cannot charge from both sources at the same time. It switches automatically to the other source when the input voltage of the current source drops below its default threshold, so charging keeps going.\u003c\/p\u003e\n\u003ch4\u003eMPPT Solar Charging\u003c\/h4\u003e\n\u003cp\u003eSolar input accepts 10V to 30V DC. Renogy lists MPPT efficiency above 99% and charging efficiency of 93%, with a maximum output current of 40A and output power of 616W.\u003c\/p\u003e\n\u003ch4\u003eFour Battery Types\u003c\/h4\u003e\n\u003cp\u003eChoose AGM\/Sealed, Gel, Flooded or LiFePO4 with the SELECT button. LEDs show the type you have chosen. The charger can also revive a lithium battery that has dropped to a low voltage.\u003c\/p\u003e\n\u003ch4\u003eWorks With Traditional and Smart Alternators\u003c\/h4\u003e\n\u003cp\u003eTraditional alternators with 13.2 to 16 VDC output and smart alternators (Euro 6, 12 to 16 VDC) are both supported. For a smart alternator, connect the IGN cable, labeled ACC, to the vehicle ignition port.\u003c\/p\u003e\n\u003ch4\u003eBuilt-In Protections\u003c\/h4\u003e\n\u003cp\u003eRenogy lists input and output reverse polarity, input and output over-voltage, over-temperature, overcharging, over-discharging and charging timeout protection. It also lists BMS protection for LFP batteries.\u003c\/p\u003e\n\u003ch4\u003eCompact Mounting\u003c\/h4\u003e\n\u003cp\u003eThe charger weighs 2.65 lb and is small enough to fit behind a seat or in a trunk. A heat sink handles cooling.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eReal-World Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRVs.\u003c\/strong\u003e Charge the house battery from the engine while driving, or from rooftop solar when parked.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSUVs and overland rigs.\u003c\/strong\u003e Keep an auxiliary battery topped off from the vehicle or from a roof panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoats.\u003c\/strong\u003e Renogy lists marine use, charging from the engine battery or solar.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003ePractical Comparison\u003c\/h3\u003e\n\u003ch4\u003e40A Single Input Versus a Dual Input Charger\u003c\/h4\u003e\n\u003cp\u003eThis charger uses one input at a time. Renogy's 30A and 50A chargers can charge from solar and the alternator at the same time. Choose this one if you only need either source at a given moment.\u003c\/p\u003e\n\u003ch4\u003eDC-DC Charger Versus a Basic Isolator\u003c\/h4\u003e\n\u003cp\u003eA basic isolator only joins batteries. This charger adds multi-stage charging, MPPT solar input and a battery-type setting.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eBuyer Guidance\u003c\/h3\u003e\n\u003ch4\u003eFusing and Voltage\u003c\/h4\u003e\n\u003cp\u003eRenogy's spec table lists a 60A input fuse rating and a 50A output fuse rating. Solar input must stay within 10V to 30V DC. The charger works from a 12V system with 10V to 16V output.\u003c\/p\u003e\n\u003ch4\u003eInstallation and Limits\u003c\/h4\u003e\n\u003cp\u003eThe enclosure rating is IP31. Operating temperature is -4°F to 113°F (-20°C to 45°C), and storage temperature is -4°F to 140°F (-20°C to 60°C). Renogy says the cables are labeled, so match each one to its label when you wire the charger.\u003c\/p\u003e\n\u003ch4\u003eThis May Be A Good Fit If\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eYou want to charge a 12V battery from your alternator or from solar\u003c\/li\u003e\n\u003cli\u003eYou need a small charger for an RV, SUV or boat\u003c\/li\u003e\n\u003cli\u003eYou charge AGM, Gel, Flooded or LiFePO4 batteries\u003c\/li\u003e\n\u003cli\u003eYou are fine with one input at a time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003ch4\u003eCan I Charge From Solar and the Alternator at the Same Time?\u003c\/h4\u003e\n\u003cp\u003eNo. This charger uses one input at a time. Renogy's 30A and 50A models are the ones that charge from both together.\u003c\/p\u003e\n\u003ch4\u003eHow Do I Choose Solar Priority?\u003c\/h4\u003e\n\u003cp\u003eThe charger defaults to DC charging. Press the SELECT button on the side to give solar priority. Press it again to return to DC priority.\u003c\/p\u003e\n\u003ch4\u003eWhen Does It Switch Inputs by Itself?\u003c\/h4\u003e\n\u003cp\u003eWith the engine running, it switches from DC to solar when the DC input is below 11.3V and solar input is above 13V. With the engine off, it switches to solar when the DC input is below 12.7V and solar input is above 13V.\u003c\/p\u003e\n\u003ch4\u003eDoes It Work With a Smart Alternator?\u003c\/h4\u003e\n\u003cp\u003eYes. Connect the IGN cable, labeled ACC, to the vehicle ignition port.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Renogy 40A DC-DC Battery Charger with MPPT\u003c\/li\u003e\n\u003cli\u003e7 x Heat-Shrink Tubings\u003c\/li\u003e\n\u003cli\u003e4 x Mounting Screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eFlexible Charging for Your 12V Battery\u003c\/h3\u003e\n\u003cp\u003eThe Renogy 40A DC-DC Battery Charger with MPPT keeps your 12V battery charged from the road or from the sun. If you have questions about your setup, the Outbound Power team is happy to help.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ctable style=\"border-collapse: collapse; max-width: 100%; overflow-x: auto;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background-color: rgb(242, 242, 242); text-align: left; width: 100%;\"\u003e\n\u003ch3\u003eRenogy 40A DC-DC Battery Charger with MPPT Specifications\u003c\/h3\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.1489%;\"\u003e\u003cstrong\u003eSystem Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.8511%;\"\u003e12V to 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolar Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ~ 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlternator Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTraditional alternator 13.2 ~ 16.0 VDC; smart alternator (Euro 6) 12 ~ 16.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Fuse Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ~ 16 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e616 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Fuse Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eCharging\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAGM, Gel, Flooded, Lithium iron phosphate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e93%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPPT Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbove 99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIdle Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnder 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Sources\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne at a time (DC input default, solar priority selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInput and output reverse polarity, input and output over-voltage, over-temperature, overcharging, over-discharging, charging timeout, BMS protection (LFP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eSize and Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRBC40D1S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.68 x 5.87 x 1.89 in \/ 195 x 149 x 48 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.65 lb \/ 1.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrounding\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon negative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeat sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F ~ 113°F \/ -20°C ~ 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-4°F ~ 140°F \/ -20°C ~ 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 ~ 90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFCC Part 15 Class B, CE, RoHS, SAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background-color: rgb(242, 242, 242);\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial and Workmanship Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":67614435541241,"sku":"RBC40D1S-US","price":205.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/9128\/2937\/files\/renogy-40a-dc-dc-battery-charger-with-mppt-front-view-with-mounting-tabs-mppt-12-12-40a-label-and-colored-wires-on-a-white-background.jpg?v=1793974482","url":"https:\/\/outboundpower.com\/products\/renogy-40a-dc-dc-battery-charger-with-mppt","provider":"Outbound Power","version":"1.0","type":"link"}