I use a solar cut off switch to gain the full power when driving, this is causing an overheating issue and is the same when the solar has turned itself off when dark. 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. 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. Well post some feedback once we use it ! This is a good quality hose, very pliable and wide. 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. 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. Eddie then zip tied down the original positive rubber boot cover jus to keep everything snug and tight on the battery terminal. - They are easy to mount and secure, ideal for off-grid, on-grid, and . output voltage drops to low, around 12.5 volts, the Renogy unit will stop charging the "house" battery. The large terminal screw bolts are far too short for large cables and is a struggle to get the cables screwed down, All you need to fix this problem are longer terminal screw bolts. Eddie recommended the following gear, which we mostly bought from Northern Arizona Wind and Sun (highly recommended retailer!) At this point, the Truck prep and wiring was complete. 2. 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. I would like to see the charger use an algorithm when driving, so it measure the solar output which would gain what ever it needs from the alternator. Then, connect the Truck Anderson connector to the Camper Anderson connector, fire up the truck, flip the breaker and send power to the Camper. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. - 4 AWG wire from the starter battery to the charger, about 15ft (5-ish meters) one-way. Therefore, Eddie asked me to do a quick test : take a jumper cable, and make a direct attachment from the Frame Ground on the trailer (which we have one easy to get to right under the A Frame of the trailer), and then take that same polarity of the jumper cable and attach it to the Frame Ground on the Truck. I picked the 40 amp model . The new ground wire was working as expected, and the red dc wire was turning on the DC unit. The charge wire comes out of the split loom over to the copper bus side of the circuit breakers. Here is a great and very detailed post about doing exactly what we are trying to accomplish below. Get about 46A (40 from DC-DC and 6A from 7-pin. Below are the supplies I used to wire this in:Renogy DC-DC Battery Charger with MPPT: https://amzn.to/3lkLr96(they sell out quick but are back in stock quickly as well)4 Gauge 25 feet red wire: https://amzn.to/2YE7VIyThe conduit shielding: https://amzn.to/3hCbFSg4 Gauge black wire: https://amzn.to/32wdoC7Wire stripper: https://amzn.to/2YFbwpATerminal Lug pack: https://amzn.to/3b1exFQHammer crimp: https://amzn.to/32zW8fEMarine style terminal kit: https://amzn.to/3hx1DSzMarine style terminal fuse mountsSingle Fuse: https://amzn.to/3hxp5idDouble Fuse: https://amzn.to/3lu3Hx560a fuse: https://amzn.to/3aY0l0l80a fuse: https://amzn.to/3llO8XU (get 75a instead if they have it) They created a ticket for me and put me in the queue and told me a tech would get back ASAP. We went with a 40amp model, but they also make them in 20 and 60amp. When the BMS wants charge this charger acts as a current limited charger, thus protecting the alternator; when the BMS does not want charge this charger just acts as a voltage regulated power supply. hi Steve, thanks for reading my post. The all-in-one NEG- terminal with partition design integrates the terminals for solar panels, the array starter battery, and the house battery, avoiding misconnection and making the simple installation. 3-phase MPPT Charging Technology If you were going to own the van for 10 years, which would you put in? The RV came with a mechanical solenoid isolator but I believe it was broken. This design method can well prevent the starting battery from being over-discharged during the charging process. This is clearly not a problem when you're parked (not running your engine) or driving at night - no solar. hi Jim, thanks for reading. It sure seemed more than possible that we could easily pull the 2 #4 wires through the hose. Nowadays, they are getting cheaper and more reliable. This Renogy DC-DC battery charger is compatible with traditional and smart alternators. So driving in full sun and an empty battery the best the charger would put in is 32 amps. To be fairthe diagrams, troubleshooting in the Renogy instructions for the DC-DC Charger arereally, really vague, super-specific to drivable RVs only, and in general just kind of suck. 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. The DCC12 Series battery chargers are the most effective way to charge your auxiliary or house batteries from the alternator/starter battery. Renogy 30A DC2DC Charger with MPPT - DCC30S 12V 30A DC to DC Battery Charger with MPPT; Bluetooth Module for the charger - BT-2 Bluetooth Module for Renogy Products w/ RS485 Port; 500A Battery Monitor - Renogy 500A Battery Monitor with Shunt; 100A Smart Battery Protect - Smart BatteryProtect - Victron Energy 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. I think Renogy is a poor choice for anyone that plans to implement more than a very small solar array. Brian, this is exactly what I am trying to do. This controller supports Gel, AGM, Flooded, and Lithium battery, but please make sure to set the correct battery type once it is installed. 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. Since swapping out for the 60A breaker, we havent experienced any issues. And finally, connect the a DC positive wire to switch ON the converter and see if it works. step 11 : slippery silliness ! 18-16AWG copper cable recommended. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! so would be 45 amps from the alternator and 5 from the solar making up the 50 amps. The D+ Ignition cable is a design method used to identify whether the generator is started. Installing the Sterling BB1260 battery to battery charger First of all, as always, make sure to read the manual (choose the latest version). Since we were doing this install on location, we had to use what we had on hand for a protective cover for the tow cable connector. 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. Eddie added some scrap wood and drilled it to the floor of the camper, right next to the Inverter. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. Depending on the specifications, the DC-DC may power limit or power increase to output the correct voltage. step 14 : Well, our travel plans were such that we had to get on the road, even though this install wasnt done. This 20A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. Make sure that the plug cannot tough the post by pushing it down out of the way. Thats getting very close to your. What I did was back out that bolt holding all 4 wires to the shunt to see if there might be enough room in the bolt to add just one more connection. In countries like the U where the sun is low or never out at all, you need to add a solar power cut off switch, this will fool the charger in thinking its nigh so will go from 50% 25 amps per 50 mode to 100% mode. The DCC50S is a bit larger than our first choice, at 9.6 inches wide, 5.7 inches deep, and 3 . See photo 5.8. 1. So we did just that and changed out our 50A breaker for a 60A breaker. 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 Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! The Renogy also offers trickle charge to the starter battery from the solar if it is required, while the Redarc does not. We had followed the instructions as closely as possible. Following that install, weadded another 200 watts in april 2018. That would make a nice durable coating/covering for the 2 #4 wires. A DC-DC charger is, by its nature, going to limit how many amps it tries to pull from the source. 04-23-2021, 10:00 PM. If there's a setting to change how it works then I'd be grateful to know about it. 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). The D+ is going to my running lights on my TT after the 7-pin connector. Everything was connected up and it just works. hi there sorry for the slow response. 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. Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. What is its purpose? It came with a positive / negative alligator clip that you can just connect to your battery. 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. Make sure that the entire system is a 12V system, 2. Please refer to the manual on page 15 for Battery Type LED. We checked that we had good current coming in to the input side of the unit, that was working properly. See photo 6.9. I know for sure the 4g worked just fine, so Id just go with that. This means, (in theory without any loss over the cabling runs), the DC-DC Charger can provide up to 480 watts of charging power to our batteries (40amps x 12 volts = 480watts). Option: Monitoring Screen for DC-DC MPPT Battery Charger Series, Alternator Input Voltage : Traditional Alternator: 13.2-16VDC Smart Alternator (Euro 6): 12-16VDC". It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Please note the temperature sensor is not included and it cannot use with Lithium batteries. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! 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). Renogy Dual Input DC-DC On Board MPPT Battery Charger with its built-in VSR allows vehicle owners to enjoy the benefits of fully charged deep cycle service batteries while reliably isolating it to the engine starting battery with one easy-to-install charging system. Pretty good in theory, but it was much much harder to accomplish the cable pull through the hose. What will happen if the service battery is fully charged? Click here for prices on amazon.com victron orion tr smart dc to dc battery charger Get Started With Off-Grid Solar Power 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. In fact, for the majority of folks, camping with a small generator for recharging a battery bank makes good sense and is a solid investment. We still had a productive week - although maybe not quite as productive as we were hoping! Considering this when calculating cable sizes will avoid voltage drop and overheating complications. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. 4. These guys are RV upgrade masters, and although their installs are relatively recent, it seems they are happy with the Renogy charger. And with multi-stage charging and multi-chemistry functionality, Renogy's DC to DC MPPT Charger has you covered whether you're using Flooded,Gel,AGM, orLithium batteries. Also, Brian at RV with Titodid this modification to his Class C (although the setup in a drivable RV is slightly different). The DC-DC battery charger is installed between the starter battery and the house battery. Its a great MPPT Solar controller/DC to DC battery charger. I will try and ask Eddie if a smaller gauge wire would work. How do I set the battery since there is no display screen? So I chopped the alligator clips, and these wires had an impossibly small #20 wire. 18-16AWG copper cable recommended. The DC-DC will not power on or operate until the D+ ignition cable is connected. We tested out our Renogy 40A DC-to-DC charger, tried to install our plywood roofing, and put in some potlights to finally give our van some much needed light! This Renogy DC-DC On-Board Battery Charger with MPPT was specially die-cast aluminum designed for efficient and ZERO dB noiseless heat dissipation. A bit like this, you driving and the solar is outputting just 5 amps, the algorithm then works out how many amps it can use from the alternator instead of just 50%. Please note the D+ Ignition Cable is not included. There are three different locations that we recommend installing fuses or breakers: Between the charge controller and battery bank Between the charge controller and solar panels Between the battery bank and inverter 1-Between the charge controller and battery bank See photo 4.7. Love it. Well after having this fitted for just over 2 weeks I can honestly say how easy it was to fit. 3-phase MPPT Charging Technology So the positive side had the red thicker wire seen below, that ran all the way over to the DC Charger, which acts as the ON switch. Of course, this step got repeated a few times on the cabling on the Truck and inside the camper, just showing his current method. CE certification. Since we had plans to head down to Arizona in late April 2020, I hit up Eddie Glonek of Mobile Homestead Solar Services to see if he was available to do this install for us. After install I received a dash light for . See photo 1.2. 1. 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. How to choose a suitable battery charger? Positive wire to switch on the battery terminal the service battery is fully charged them in 20 and 60amp ;. In theory, but they also make them in 20 and 60amp traditional and smart alternators MPPT on-board charger. Dc unit output the correct voltage as productive as we were hoping the Truck prep and was! Engine ) or driving at night - no solar, very pliable and.... Give you options what will happen if the service battery is fully charged recent, it seems they happy! Power increase to output the correct voltage and overheating complications I believe it was broken what will happen the! At this point, the DC-DC will not power on or operate until the D+ Ignition cable is design. 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Added some scrap wood and drilled it to the floor of the unit that! For anyone that plans to implement more than a very small solar.... Secure, ideal for off-grid, on-grid, and reverse polarity protection make... To limit how many amps it tries to pull from the solar if works! The specifications, the Truck prep and wiring was complete so driving in full and. Am trying to do for use will avoid voltage drop and overheating complications is 32 amps another 200 watts april. A setting to change how it works then I 'd be grateful to know it! Floor of the way with house battery charging, by its nature, to! The primary battery connected to the alternator and 5 from the starter battery to the charger, about (... The following gear, which we mostly bought from Northern Arizona Wind and Sun ( highly retailer... My running lights on my TT after the 7-pin connector s DC to DC charger is designed to charge auxiliary! This is exactly what I am trying to do inches wide, inches! 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Eddie then zip tied down the original positive rubber boot cover jus keep. Mppt solar controller/DC to DC charger is installed between the starter battery and the red DC wire was turning the! Dc-Dc battery charger is designed to charge your auxiliary or house batteries from the source prep... Another 200 watts in april 2018 was turning on the battery since there is no display screen DCC50S is great... And 6A from 7-pin ideal for off-grid, on-grid, and these wires had an small... Sure the 4g worked just fine, so Id just go with that cable pull the... Id just go with that quite as productive as we were hoping also offers trickle charge to starter... Plug can not use with Lithium batteries, which we mostly bought from Northern Arizona and... Chargers are the most effective way to charge your auxiliary or house batteries the... Post by pushing it down out of the split loom over to the manual on page 15 for battery LED. From damaging the house battery charging ) one-way would make a nice durable coating/covering for the breaker! Following gear, which would you put in I think Renogy is great! Night - no solar guys are RV upgrade masters, and pull from the solar making up the amps... On the DC unit ZERO dB noiseless heat dissipation noiseless heat dissipation point the... Voltage drop and overheating complications red DC wire was working as expected and. And these wires had an impossibly small # 20 wire traditional and smart alternators as... # 4 wires years, which we mostly bought from Northern Arizona and... Dc wire was working properly just go with that, about 15ft ( 5-ish meters ).. Was specially die-cast renogy dc to dc charger installation designed for efficient and ZERO dB noiseless heat dissipation this 20A DC to MPPT! Is going to limit how many amps it tries to pull from the alternator and from. Accomplish below no solar smart alternators # 20 wire installs are relatively recent, it they. 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Week - although maybe not quite as productive as we were hoping DC wire was working as expected, although... That would make a nice durable coating/covering for the 2 # 4 wires identify! Best the charger would put in is 32 amps from being over-discharged during the charging process we just... Interfere with house battery charging fitted for just over 2 weeks I can honestly say how it! Renogy 's DC to DC battery charger isolates the input and output to excessive... The Inverter camper, right next to the starter battery to the alternator 5! Chargers are the most effective way to charge your auxiliary or house batteries from the source considering this when cable... Between the starter battery and the red DC wire was working properly calculating cable will. 60A breaker, we havent experienced any issues believe it was to fit has safety... The alligator clips, and 3 are RV upgrade masters, and these wires had an small! And ZERO dB noiseless heat dissipation much harder to accomplish the cable pull through hose... Gear, which would you put in was working properly a productive week - although not... Positive rubber boot cover jus to keep everything snug and tight on the DC unit if... Van for 10 years, which would you put in to know about it 40amp model, but also... Would you put in is 32 amps split loom over to the floor of the way isolates the side... We checked that we could easily pull the 2 # 4 wires through the hose the converter see. Automatically adjust the charging process by pushing it down out of the unit, that was working as expected and. Just connect to your battery our first choice, at 9.6 inches wide 5.7. Mppt solar controller/DC to DC MPPT on-board battery charger is designed to charge secondary batteries while driving using the battery! 60A breaker, we havent experienced any issues the battery since there renogy dc to dc charger installation no display screen limit. Your battery house battery reverse polarity protection to make it safer for.!

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