Renogy you need to have active cooling like a small inbuilt fan to fix the overheating? For example, the Renogy 40A DC to DC battery charger may draw up to 60Amps whilst charging (40 amp x 1.50 (50%) = 60 amps). In Theory. Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. Instead of burning lots of #4 cable to run both a positive and negative, wed just run the positive from the battery, then use the frame as the negative return. I was able to easily fit in the new ring connector of the Trailer Frame Ground wire, placing the flat sides of the two wires together, and then re-attaching the bolt in the DC unit on the ground side. Key Features so would be 45 amps from the alternator and 5 from the solar making up the 50 amps. This can be configured to do just that. First time poster, hoping to get some advice on my Renogy 20a DC to DC charger installation in my 2016 Honda Pilot EX-L. My setup is pretty simple: + terminal from starter battery to 30a circuit breaker to + input on charger, - from starter battery to - input on charger. This enables the backup battery's charge to be replenished quickly. What will happen if the service battery is fully charged? hi Brian, probably no big deal to leave the 7 pin wired for trickle charge. 1. Filter By Request Wholesale Price REGO 12V 60A DC-DC Battery Charger Compare $499.99 Add to Cart DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT Compare $269.99 $339.99 Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. So, if youve been following along, you probably know we had previouslyadded 400 watts of solaron the roof of our Rockwood Mini Lite 2104S in August of 2017. and charging drops to 6A then back up to 46A every few seconds. Make sure that the entire system is a 12V system, 2. This is stated in the manual but can easily be overlooked, so the cable and fuse size chart is a good reference point. 18-16AWG copper cable recommended. DC-DC Chargers are essential components for properly charging and maintaining your second battery bank in your dual battery bank system. And now it was time for a test. Modern generators can produce clean pure sine wave power, are very efficient, and many models are very quiet (compared to open frame construction / emergency generators). 18-16AWG copper cable recommended. Eddie then connected the DC positive wire from the green terminal left connector, to a test DC positive on our batteries and. Ive only just found the time to instal, which went easily and well, and am yet to finalise the perimeters for the very best set up..but first I need the BVS.. circles upon circles, who knows maybe the ignition wire will come in handy after all. With Built-in Maximum Power Point Tracking (MPPT), Renogy DC-DC On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging (Bulk, Boost and Float) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%. By utilizing the DC-DC temperature sensor, this charger is able to protect your battery from high or low temperature by giving -3mV/C/2V compensation so that the charger recognizes the voltage more accurately and assures stable and constant charging to the battery. This was puzzling to me, since it would seem that a 40amp DC charger wouldnt draw more than 40amps. Renogy's DC to DC charger packs all the same capabilities as any other manufacturer's, at a lower price point. When connected with two batteries, it is vital to be able to isolate the two start and service batteries for charging safety. Your email address will not be published. Love it. I use a small fan to help it stop overheating. The 50A Renogy will be ok, but "might" stress the battery. The DCC50S is a bit larger than our first choice, at 9.6 inches wide, 5.7 inches deep, and 3 . step 10 : connect the long #4 wire from the tail of the truck to the breaker in the engine compartment. It sure seemed more than possible that we could easily pull the 2 #4 wires through the hose. What types of battery does the charger support? I have also read some strong feelings against Renogy. 12V 40A DC to DC Battery Charger w/o Solar Input. We havent yet tested this new modification in the real world but looking forward to our next trip and trying it out. hi there sorry for the slow response. I am experiencing the same problem for my 2.0 amp Renogy charger no green light. Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. Connect + to the Power Distribution Center (PDC) that hangs off the starter battery terminal and add an appropriate size Midi fuse to the PDC. Now it was time to test our setup ! Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Do not reverse the polarity since the reverse polarity of the battery connections can cause injury and damage to the device. If you have any questions regarding this product, pleasesubmit a case. By utilizing the DC-DC temperature sensor, this charger is able to protect your battery from high or low temperature by giving -3mV/C/2V compensation so that the charger recognizes the voltage more accurately and assures stable and constant charging to the battery. We only added one ring connector, because we were going to pull the other end, then cut to the perfect run length to terminate on the tail of the truck. Unfortunately, I was now back in Denver by this time, so having Eddie finish the job wasnt in the cards as he was still down in Arizona. Step 6 : pull the #4 wire through the frame channel. The DC-DC battery charger adopts the design of the DIP switch and it provides 6 charging voltage settings through five gears. The new Orion-Tr Smart DC-DC charger is designed for use in dual battery systems in vehicles or boats, where the (smart) alternator and the start battery are used to charge the service battery. and THERE WAS ! I installed a 70 amp breaker just outside the seat base so I could reset it if needed without removing the seat, see photo 7.10. We checked that we had good current coming in to the input side of the unit, that was working properly. These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. If Renogy added this already, or adjusted the charging algorithm to accommodate such scenario (low PV power) it would be perfect. 2. When the generator is started, a signal will be obtained on the D+ Ignition cable, which will light up the indicator light of the charger. I had seen Ray over at Love Your RV do this upgrade on his 5th wheel, so we were hoping to do the same. Renogy 20A 12V DC to DC On-Board Battery Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. Renogy DC to DC Battery Charger InstallRenogy 60A DC to DC Battery ChargerCompatible with a multitude of alternator types, this 60A DC to DC Battery Charger . In the picture below, was the existing setup done by Eddie back in the Summer of 2017, showing all the DC loads and Trailer Frame Ground coming in to the left side of the shunt. The idea here would be, in our case, to connect the on/off wire to the running lights of the truck, so that it would only be active if our running lights were on (either 7pin connected to the trailer OR we jump the 7pin with a fuse). How to set the charging voltage value of the charger? # 1. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. 4. See photo 3.4. The Renogy DC-DC Battery Charger is multi-certified to CE, FCC, and PoHs. If the battery charger is connected to the starting battery and solar panels at the same time, the maximum input current will be 15A for each; if the battery charger only connects one of the two DC inputs, the maximum input current will be 30A. The DC-DC battery charger is installed between the starter battery and the house battery. Haven't observed any overheating issues, but may add a 12v computer fan to help shift some air across the rear just in case. Obviously we can change our power consumption habits to adjust to the lack of sun (not using the microwave, not using the electric water kettle etc), but even then, after 3 days with no sun, our batteries start to dip down to low levels. How do I set the battery since there is no display screen? And what the heck does that mean ? So, we really dont need more battery capacity just an alternate backup system to recharge the batteries when there is no sun for the solar setup OR there was to be some sort of problem with our solar setup (such as a malfunctioning solar controller, etc.). This multi-stage, multi-input battery charger can charge the house battery from a starter battery linked to the car alternator or by utilizing solar panels connected directly to the unit. Easily install the compact yet sturdy DC1212 on RVs, commercial vehicles, boats, yachts and many more applications! I found this item to be of good quality packaged well and with most of the relevant bits that make it go. Installing a Ductless mini-split on an outdoors rv travel trailer, Installing a Victron 250watt Phoenix inverter, sure wish I had found this guys blog sooner, F-150 Powerboost. BTW this mod is working great, when we need it, it really fills up our lithium batteries quickly. 18-16AWG copper cable recommended. Easy to install and well made. I'll post a video of this on my Youtube channel, just google youtube vangonow, https://www.youtube.com/channel/UCqYGzyL-IjKkQRi2IDnbGIw. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Just the 7 pin trailer connections. After some crawling around, Eddie determined that on our Truck, the frame was wide open, with hardly any obstructions, allowing for basically a straight shot from the engine compartment all the way to the tail of the Truck. The Renogy unit is +10 amps more than the allowable MB guidelines of 40A. Is it necessary to connect? We did a few tests to be sure the breaker and fuse were working as expected and that we had power at the Anderson connector plug on the tail of the Truck. Protect Your Starter Battery Here is a great and very detailed post about doing exactly what we are trying to accomplish below. The DC-DC battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. These are very reliable connectors (used for things like powering winches and snowplows), have a nice weatherproof cover, and are rated for 50amps of power. 18-16AWG copper cable recommended. If the battery charger is connected to the starting battery and solar panels at the same time, the maximum input current will be 15A for each; if the battery charger only connects one of the two DC inputs, the maximum input current will be 30A. Check out our inital tests on how to run the Camper on 30amp service from the truck and how to recharge our batteries. I backed up the truck, connected the Anderson connector from the truck source plug to the camper load plug. So added a 60A rated relay to cut off the PV input, controlled by the D+ (engine on) feed on my Sprinter W906, so can charge LiFePO4 batteries at 50A from ALT input (need appropriately sized cable from starter battery) when the engine is running. I anchored these to the wall so there would be no real stress points and tested all connections. Install is pretty simple. The model range is suitable for 12V or 24V systems, and both lead acid and lithium batteries. Eddie had loads of plastic loom to encase the 2 #4 wires from the camper to the Truck, but it was decided that, when used for towing, (exposed to the elements, water, road grime, salt, tar, sun) the loom would probably deteriorate rapidly. After install I received a dash light for . And we decided to just shut it all down and have a well deserved adult beverage or two and catch the remaining bits of Arizona sunset. If one were to do this, can the dc to dc converter/charger be connected straight to the aux battery terminals or does it need to be tied into F150 (I think thats the location you would use if no Aux battery present, working on my comprehension of this whole situation). Also note, I increased the breaker amps in a subsequent edit to this post. Is it necessary to connect? This multi-stage, multi-input battery charger can charge a service battery from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit. 3. See photo 2.3. If you have any questions, please contact us in time. The RV came with a mechanical solenoid isolator b. That would make a nice durable coating/covering for the 2 #4 wires. However, I did find that not supplying the BVS which is required but supplying the ignition detection wire that isnt was odd. Disconnect the main battery - This wasn't so easy, there is a small (5\" x 5\") plastic cover to the right of the accelerator pedal, pull it from the top and then pull up hard, its not easy bu t it comes off. As a bonus it can be reduced to half power if full output is not required (like for example the first few minutes after engine start with a timer relay). The new ground wire was working as expected, and the red dc wire was turning on the DC unit. These guys are RV upgrade masters, and although their installs are relatively recent, it seems they are happy with the Renogy charger. Once connected, I fired up the truck, flipped the breaker in the engine compartment, and it was time to test the DC positive on wire. Luckily Eddie had a fancy pneumatic ring crimper, perfect for this #4 wire size. The charger needs to select the charging mode according to the battery voltage. Please note the D+ Ignition Cable is not included. Please refer to the manual and check the functions and settings of your product. The idea is, the alternator on the your tow vehicle (or in the case of a van, or drivable RV) creates extra surplus power that can be used charge the house batteries of the camper. Hello, thanks for the excellent post on adding a grounding cable from the (-) input of the DC DC Charger to the trailer frame ground wire. Below is a proud Eddie, and his new Load side Anderson connector. Step 3 : gather the parts and gear needed for the install. To change the battery type you will need to press the push button that is located on the PV+ and ALT+ side of the DCDC, then continue to press the button and the LED will display different colors with each representing a single type of battery. But, if you drive in the daylight your solar might only be producing a few amps and yet you alternator will only be able to charge at 25 amps. If you have any questions regarding this product, please, 12V 20A DC to DC On-Board Battery Charger, Battery Temperature Sensor for DC to DC on-board Battery Charger, DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT, 1000W 12V to 230V/240V Pure Sine Wave Inverter With English Standard Socket (with UPS Function), 12V 60A DC to DC On-Board Battery Charger, 3000W 12V Pure Sine Wave Inverter Charger w/ LCD, 12V 200Ah Lithium Iron Phosphate Battery w/ Bluetooth, 12V DC to DC On-board Battery Charger Manual V1.2. 1. Special thanks to Matt for helping us out ! If you have any questions regarding this product, please, More questions about your off-grid power system? Be careful not to over-torque the terminals on the DCDC as over-torquing may cause irreparable damage (Do not exceed 16 N-m / 3.3 ft-lb). Well minor issue on a recent trip when we finally really tested this setup. From here, he ran a new short #4 cable from the ground and snaked it over to an existing passthrough for the Truck tailgate power, lighting and camera. The Terminal fuse protects the wire from the battery to the breaker, then the breaker protects the wire run along the length of the truck. Please note the temperature sensor is not included and it cannot use with Lithium batteries. This is why we currently have up to 700 watts of solar collecting power, and 200ah of lithium batteries for storage (the equivalent of 350ah of lead acid, more or less). So I chopped the alligator clips, and these wires had an impossibly small #20 wire. 1. Once you have read up on how we added a Renogy DC-DC charger to our travel trailer, check out a few of our other posts about the other upgrades we have done: better cellular connectivity when you are in the middle of nowhere and need to work, why we chose lithium batteries and why we love them, lots of other upgrades we have done to our travel trailer. SO, I cut an existing wire (green / white shown below), which powers the passenger side front yellow marker light (which now also has 1 of 4 observation cameras on it as well). hi Steve, thanks for reading my post. WIth Built-in Maximum Power Point Tracking (MPPT) technology, this battery charger with MPPT maximizes the solar power when charging from solar panels, and ensures that the loads receive maximum current to be used. In my latest RV mod, I install a high amperage 30A 12VDC port into the bed of my 2018 Ram 3500 pickup truck. What is a DC-DC charger? I had plenty of #4 wire available, so I could easily make a wire long enough to swing around the top of the existing 4 incoming connections to the shunt, and just add my fifth wire on top, and bolt back down the shunt bolt. My connections were not up to Eddie standards, but, the connections are solid, and I was able to cover all my mistakes up with heat shrink tubing, so hopefully Eddie wont laugh too hard at me next time he sees my work. While we were on the road, and waiting for Renogy to return our call (which they tried to call a few times, but we were always in a no-cell zone when they did) , Eddie called up Ray from Love Your RV to get some troubleshooting advice, as well as doing some research on forums and on the web to see what we might have missed, just in case it wasnt a defective converter that caused the issue. 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