Bonus points : he is friends with Ray at Love Your RV, so we knew we could hit up Ray if we hit any technical issues or roadblocks during the install. 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. 3. It's the smart way to keep yourself fully charged and off-grid longer! Renogy DC-DC On-Board Battery Charger is designed to charge service batteries from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit, offering multiple charging options and ensuring your battery stay fully charged. This took way longer than I had hoped, mainly because I had never used a hammer crimper before. Might be similar to. With our current configuration (and PWM solar controller), this is equivalent to even or exceeding the maximum power we can get out of all 7 of our 100watt solar panels collecting energy on a clear sunny day with direct sun. The wire gauge is so small (like 12g?) CE certification. Im calling Renogy Monday morning but hoping to figure it out sooner than later. 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. 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 offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries!Featuring a 3-stage battery charger and multiple electronic protections, owners can feel confident that their batteries are being charged optimally and automatically.Easily install the compact yet sturdy DCDC 40A on various applications such as: RVs, commercial vehicles, boats, yachts and many more!Edit Post2019 Sprinter Van Lesson 10,103 - Sourcing 12v PowerHere are few lessons learned from making a connection to the upfitter lugs under the drivers seat to get 12v power from the engine/aux batteries, it seems like there is zero info about the entire process out there so here goes. Links to all products Cahn uses below. - 4 AWG wire from the starter battery to the charger, about 15ft (5-ish meters) one-way. What types of battery does the charger support? When connecting the charger and the battery, make sure the battery poles are clean when connecting the terminals, select a sufficient cross-section for the connection cable, tighten the nuts and bolts with proper torque as loose connections may cause overheating. For even more flexibility, we added a portable 100 watt panel in the fall of 2018. When connected with two batteries, it is vital to be able to isolate the two start and service batteries for charging safety. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. I located an upfitter manual on the Mercedes site ( https://www.upfitterportal.com/en-us/files/en-us/beg/my20/sprinter.pdf), it required an email in order to download, so don't let that stop you if you can't download it without providing an email. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. Connecting to the A2 upfitter lug - This is where you can source up to 250 amps of power and is left open for upfitters, this is where i connected my 4 awg wire. Then connect a new short #4 wire from the breaker to the terminal fuse on the positive terminal on the Truck battery. 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. The compact and robust design makes it suitable for all conditions. We looked at the instructions a few more times, even searched for a more recently updated version of the instructions as a pdf (in case ours were out of date). Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. 480 watts solar, more than will fit on your small compact roof. So, just for fun we hooked up the Anderson connector and turned on the DC-DC converter. Luckily, there was an existing ground which Eddie could re-use, right under the tail. DC-DC Chargers are essential components for properly charging and maintaining your second battery bank in your dual battery bank system. Step 2 : contact Eddie ! 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. 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. This design method can well prevent the starting battery from being over-discharged during the charging process. And finally, connect the a DC positive wire to switch ON the converter and see if it works. How do I set the battery since there is no display screen? Step 5 : make a nice ring connector on the engine end of the #4 wire. step 13 : old lucky 13 ! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. See owners manual for more details. 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. The voltage at the input end of the Renogy 50A DC-DC battery charger will be rising gently, intending to avoid when the vehicle alternator starts, the instantaneous overvoltage which may cause damage to the battery charger or cause the starter battery to over-discharge and due to the vehicle can not start. Renogy DC-DC Chargers support a variety . 2. I am trying to see if it ok to have the 7 pin doing the trickle charge and using the DC to DC at the same time. Brilliant charger, easy to connect up so long as you use a ground bus bar, but disappointed by the poor instructions regarding the smart alternator, & that there's no temperature adjustment if you have a lithium battery connected (even a Renogy one). I have also read some strong feelings against Renogy. Required fields are marked *. 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). Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. Special thanks to the hard work of Eddie Glonek of Mobile Homestead Solar Services as usual. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! With RJ45 communication port featured, you can unlock monitoring features exclusively using theBT-2 Bluetooth Moduleand Renogy DC Home App, control and monitor the device remotely through your phone in real time. Disconnect the two wiring harness connectors under the driver seat, one is white and one is yellow. : The theory was, wed use one long run of the #4 welding cable to run from the Trucks battery, all the way to the tail of the truck. Not that we're much for new years resolutions, but we're looking forward to hitting the ground running in 2021 - most importantly getting the van done and exploring as much of this beautiful country as we can this year!Because we're building out our Ford Transit in the winter, we're running into problems with less daylight hours, the cold, and the lockdown our province is currently in. Check out our UPDATED DC-DC charger review and installation video:https://youtu.be/6nAFz8mF7k8Happy New Year everyone!We took time off over the winter break to spend some much appreciated time with our family. Much like a Solar Controller, the DC-DC Charger needs to know your battery chemistry as well as the recommended voltage range so that it can properly charge. Charger Bob L on Jun 23rd 2022 Maximum System Voltage: 1500V DC (UL) Operating Temperature: -40F to 185F . But in the UK, PV output isn't great. Polycrystalline panels are cheaper, but they are also less efficient. 4. 12V 20A DC to DC On-Board Battery Charger. Next look back into this cavity and you'll see the disconnect tap, it has a red button on it, depress the button and pull the plug off the post, its tough to reach but relativity easy to pull off. Luckily Eddie had a fancy pneumatic ring crimper, perfect for this #4 wire size. This diagram shows the whole connection of the DC-DC On-Board Battery Charger. 18-16AWG copper cable recommended. Great bit ov kit once up a running would Recomend, im running 640 watt renogy panels, 2000w Renogy inverter, Renogy Bluetooth, x2 Renogy smart lithium batteries, and dc50 mppt charge controller. step 10 : connect the long #4 wire from the tail of the truck to the breaker in the engine compartment. Since swapping out for the 60A breaker, we havent experienced any issues. There is possibly some extra demand and wear that this will put on your alternator, especially if used when not driving. The red dip switched needed to be set for lithium, and in our case, that was : The phone jack , black plug is for temperature regulation (not needed for our Lithium setup), the Green terminal connector, is actually the ONLY on/off switch on this unit. He then passed the long positive #4 wire from the Truck battery, along this same area and passing it through the existing hole for the tailgate power. She had one priority in regards to energy usage when we were starting our camper journey, which was, above all, she would prefer to not be reliant on using a generator, ever if possible. The RV came with a mechanical solenoid isolator but I believe it was broken. 18-16AWG copper cable recommended. Bluetooth Monitoring Ready! Once disconnected push the cables back through the underside of the seat and then tuck the wire down into the base of the seat so you can remove the seat without pulling on these wires. 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. Eddie suggested the Anderson connectors (and boot covers), pictured below, for the connection between the Truck and the Trailer. Renogy DC-DC On-Board Battery Charger has multiple intelligent protections includes battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection, guaranteeing charging safety and protecting your batteries. BUT (heres the issue) after 30 secs or so the Renogy starts turning on and off (internal protection?) Its a pretty crude tool, which you need to smash the crimper with a heavy hammer (i used an 8# sledge) onto a very hard surface like concrete. For the RV system, The generator ensures stable power supply to the starter battery, and uses the extra power of the starter battery to supply power to the house battery. With up to 99% MPPT tracking efficiency and 94% convert efficiency, the charger can fully charge a 1kWh battery within 2 hrs with solar energy. I had to swivel the seat base in order to get a socket onto the back two bolts. This means that, all I had to do was run a #4 cable from the shunt, snake it through the existing wiring, and terminate that cable in the back of the DC Charger, on the Input side. The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. Question: can I use a smaller gauge wire like a an 18 gauge wire instead of a hes y 4 g cable? Love it. If you have any questions regarding this product, please, 2.65 X 1.38 X 0.55 in (67.3 X 35 X 14 mm), 12V 40A 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 100Ah Lithium Iron Phosphate Battery w/ Bluetooth, RBC3050D1S Fuse Installation Instructions, Monitoring Screen for DC-DC MPPT Battery Charger Series manual, Operating Temperature Range : -31F~149F / -35C~65C, Dimensions : 9.6 x 5.7 x 3.0 in / 244 x146 x77 mm, Communication Port:RJ45 (RS485 Protocol), Operating Temperature Range: -4F~113F / -20C~45C, Dimension: 2.76 x 4.33 x 1.25 inch / 70 x 110 x 31.8 mm. 04-23-2021, 10:00 PM. 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 one took a few more steps to complete after the fact than normal. 5. 3. 12V 40A DC to DC Battery Charger w/o Solar Input. 3-phase MPPT Charging Technology What type of alternator is this on-board battery charger compatible with? Eddie recommended the following gear, which we mostly bought from Northern Arizona Wind and Sun (highly recommended retailer!) I ordered some more #4 welding cable, some more ring connectors, bought a good linemans cutters from Home Depot (to make a clean cut in the #4 cable), as well as ordered a manual hammer crimp tool to connect the ring connectors to the #4 wire. 3. The D+ Ignition cable is a design method used to identify whether the generator is started. But these tiny wires stay snug without any issue in the WAGO. What will happen if the service battery is fully charged? The D+ ignition cable can be purchased at the local store or online, it suits both D+ and LC terminals. Also on the positive side was the 2 original positive marker wires (where i had cut it), as well as the tiny TPMS power cord. I appreciate Eddie explaining ( a few times ) , the exact steps Id need to do to finish this one on my own. 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. SUCCESS ! Removable side covers avoid contact between product terminals and the human body during transportation and daily use, which results in electrostatic damage, ensuring product stability and safety. This would complete the Truck positive and ground for the power output from the battery. For boats, the DC to DC charger will be plugged into a dockside outlet for use when the boat is in port. After install I received a dash light for . Key Features The new ground wire was working as expected, and the red dc wire was turning on the DC unit. Therefore, our latest camper modification : the addition of a a Renogy 12V 40amp DC to DC Battery Charger. For example, a Victron MPPT Solar controller can obtain battery temperature via blue tooth from the Victron Battery Monitor eliminating the need to install a separate temperature sensor for the Solar controller(s). For our style of camping, having only solar power, we are covered for about 90% of the time. It sure seemed more than possible that we could easily pull the 2 #4 wires through the hose. I have a couple of installation questions about my Renogy 40amp DC DC charger with 2 200AH Lithium Batteries (ampere time) Question 1: So I have seen were folks put in a switch that sees 12V and turn it to the on position to enable the DC/DC and turn it off when they dont want to pull from the tow vehicle. 4.1 Mount the Battery Charger 4.2 Location Considerations 4.3 Connecting Temperature Sensor 4.4 Connecting IGN Signal Wire 4.5 Connecting Battery Voltage Sensor 4.6 Selecting the Battery Type 4.7 Connect the Battery Charger 4.8 Typical Setup 4.9 Cable and Fuse Sizing 5 Operation 5.1 LED Indicators 5.2 Charging Logic 5.3 Solar Charge Algorithm 1. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. Install is pretty simple. Most default dual battery systems support auxiliary battery charging through an isolator but commonly this does not allow for a full charge of the second battery bank. This manual showed me the two connections points I needed to make on pages 245 thru 248, one for 70 amps of power going to my DC to DC charger located in the rear of the van and the other was a small 12v signal wire that is used to turn the DC charger on ONLY while the engine is running. yowza. I anchored these to the wall so there would be no real stress points and tested all connections. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! The charger needs to select the charging mode according to the battery voltage. Well post some feedback once we use it ! 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. Renogy DC-DC Chargers support a variety of battery types and, depending on the charger, it operates while driving or stationary in order to maximize your off-grid lifestyle. It allows me to charge my batteries with proper multi-stage charging by both my alternator AND solar panels. Renogy is a well-known manufacturer of power systems. 4. Bought a 170 lithium battery from renogy 4 months ago and one major issue shows up every-time. 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. We had several days of heavy cloud cover, mist and steady rain while staying at Hartman Rocks near Gunnison, CO. I give it 5 stars because I have fixed all the faults apart from the short terminal bolts, but TBH I shouldn't have to fix any! 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. Due to afternoon shade and an AC-power heavy dinner (toaster oven, microwave) and heavy use of the 3 DC fans in the camper (it was 93F), we brought our Battle Born batteries down to 54% after morning coffee and a toasted bagel. 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). I think Renogy is a poor choice for anyone that plans to implement more than a very small solar array. If you have any questions regarding this product, please, More questions about your off-grid power system? The issue : after about 5 minutes, the 50amp breaker on the truck would trip. 4. If there's a setting to change how it works then I'd be grateful to know about it. The Renogy hides the input cables and uses posts to connect the ca. Haven't observed any overheating issues, but may add a 12v computer fan to help shift some air across the rear just in case. 18-16AWG copper cable recommended. 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. Renogy's DC to DC charger packs all the same capabilities as any other manufacturer's, at a lower price point. 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. 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. What is a DC-DC charger? 50A DC DC Board Battery Charger with MPPT Renogy 20/40/60A DC to DC Battery Charger Rover 20/30/40/60/100 Amp MPPT Charge Controller Rover Elite 20/40A MPPT Solar Charge Controller 40A Set w Holder ANL Fuse, 40 amp (40A ANL Fuse Set w/Fuse) Renogy One All-in-One Smart Panel System Energy Monitoring ; Nominal System Voltage : 12V DC : 12V DC For added safety to personnel, the DCC12 isolates the input from the output preventing incorrect voltage transmission. 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. They take the voltage and current of the input and transform it to a usable voltage/current for the output. 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. 2. Please note the temperature sensor is not included and it cannot use with Lithium batteries. upate 6/18/2020 : we finally got back out on a trip since installing our DC-DC converter. That is, after a few days without consistent sunshine, we have no backup method for recharging our batteries. This side of the DC Charger is the outgoing power, which connects to the camper batteries. We recently reviewed some of their 100-watt, 12-volt solar panels, and we were impressed.So we were eager to find out whether the Renogy DCC50S 12V 50A DC Board Battery Charger meets that standard.. These types of systems are not new, and actually quite common in drivable RVs, but I will be describing this in terms of a towable camper. A DC-DC charger is, by its nature, going to limit how many amps it tries to pull from the source. Why do we need Smart DC-DC chargers? 3. 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