With RJ45 communication port featured, you can unlock monitoring features exclusively using the BT-2 Bluetooth Moduleand Renogy DC Home App, control and monitor the device remotely through your phone in real time. 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. 18-16AWG copper cable recommended. 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. 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. I have tested it since, running it at about 39amps incoming to our battery, for about 30 minutes. The VSR also ensures reliable isolation between the starting battery and service battery, avoiding charging interference. Reinstall seat bolts, dust cover and reconnect the two wiring harnesses and the main battery disconnect.Thats it, not too to bad once you've done it but nerve racking the first time for sure. Your email address will not be published. The key components of a solar van installation are: Solar panels: Solar panels come in two main types: monocrystalline and polycrystalline. The Victron pair you're leaning towards is an excellent choice. One simple way for us to solve this issue would be to just add a third BattleBorn Lithium battery. 3. 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). How do I set the battery since there is no display screen? 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. 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. Check out Rays video on this subject at this point of the video linke : https://youtu.be/ww_4yhQPGwY?t=643 . Renogy 40A DC to DC Battery Charger ; Nominal Voltage: 12V: Rated Charge Current: 40A: Output: 500W: Idle Power Consumption: <0.4A: Input Voltage Range: 8V-16V: . and.. As you can see, the green light above the dip switch was on, indicating the DC unit was charging the batteries, and below, in my TM-2030 Wifi output to the Battery Monitor, it was showing 40amps coming in from the truck, into our camper batteries !! 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. in Redstone, Colorado.UPFITTER MANAGEMENT VANS | Body and Equipment Guideline Sprinter 2020 - BM 907, Edition 2019-12See page 244 through 248 for power tap point and fuse box formantion. 3. For RV solar panel installation with limited space, we'd recommend going with monocrystalline panels for the most bang for your buck. 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. 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). 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 3. See photo 1.2. Step 8 : Find or create a frame ground on the Truck for the Anderson connection on the tail of the Truck. These guys are RV upgrade masters, and although their installs are relatively recent, it seems they are happy with the Renogy charger. Totally demoralizing after a long 6-7 hour overall project effort. 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 something I could handle on my own (with some advice from Eddie, naturally). Been using the 50 amp charger for almost 2 years to charge 2 AGM batteries, No issues to report for these batteries. BUT (heres the issue) after 30 secs or so the Renogy starts turning on and off (internal protection?) 3-phase MPPT Charging Technology What is its purpose? 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. The D+ is going to my running lights on my TT after the 7-pin connector. Eddie added some scrap wood and drilled it to the floor of the camper, right next to the Inverter. Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. Gender: Male. 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. 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. I put the question out to Matt of the awesome adventurousway.com, why do you need a fuse on battery and a circuit breaker both? Option: Monitoring Screen for DC-DC MPPT Battery Charger Series. 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). Considering this when calculating cable sizes will avoid voltage drop and overheating complications. 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. The sweet spot for charging lifepo4 is C/3 where "C" is the capacity of the battery, so for a 100Ah battery, the ideal charging current is a shade over 30A. This design method can well prevent the starting battery from being over-discharged during the charging process. Step 3 : gather the parts and gear needed for the install. May give you a start on finding it. At this point, it was WELL PAST happy hour. Connecting to the DC+ lug for a light power source that is only powered when the engine is running. 1. 12V 40A DC to DC Battery Charger w/o Solar Input. I also test out using an old Bogart SC2030 solar charge controller I have laying around for alternator charging. But in the UK, PV output isn't great. This 20A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. 4. 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. Love it. After 25ft of 4ga wire, the voltage would be down to 11.5V. Very happy so far. Pretty good in theory, but it was much much harder to accomplish the cable pull through the hose. Lift off the seat, its heavy, I just sat it on a crate positioned between the two seats.5. I am experiencing the same problem for my 2.0 amp Renogy charger no green light. 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. 1. so would be 45 amps from the alternator and 5 from the solar making up the 50 amps. And finally, connect the a DC positive wire to switch ON the converter and see if it works. Eddie suggested the Anderson connectors (and boot covers), pictured below, for the connection between the Truck and the Trailer. CE certification. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Things are starting to come together, but we still have a looooong way to go in this build.Now, time to get some painting done and get the insulation covered with our new, beautiful 1/4\" Maple wall and ceiling panels!________________We are a couple of full-time travel dreamers who decided to pack up our lives to explore the world - and then 2020 happened. 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. Luckily Eddie had a fancy pneumatic ring crimper, perfect for this #4 wire size. Question: can I use a smaller gauge wire like a an 18 gauge wire instead of a hes y 4 g cable? step 14 : Well, our travel plans were such that we had to get on the road, even though this install wasnt done. This is how Ray at Love Your RV did his install, and it seemed to work just fine for him. Similar to what Ray did, we wanted the install to be set up in a way that we have the option to only turn on the DC-DC Charger when we need it. 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 I've only got 125 watt solar panel and the best I ever see is about 7 amps. Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. . They are available on Amazon as well as directly from Renogy. 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. Easily install the compact yet sturdy DC-DC battery charger on RV's, commercial vehicles, boats, yachts, and many more applications! Posts: 8. 2. Connect the - to a factory ground point under the drivers seat. With this in mind, the NLDC-40 features a 600W MPPT solar regulator, unlike the NLDC-25's 375W MPPT. Links to all products Cahn uses below. One note is that you will need to run a wire from the charger to your vehicle's ignition circuit. Just the 7 pin trailer connections. It allows me to charge my batteries with proper multi-stage charging by both my alternator AND solar panels. Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Make sure that the plug cannot tough the post by pushing it down out of the way. Well post some feedback once we use it ! That would make a nice durable coating/covering for the 2 #4 wires. 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%. You simply attach the positive and negative leads from each battery to either side of the charger, then connect a wire from the charger to the ignition system. 04-23-2021, 10:00 PM. Option: Monitoring Screen for DC-DC MPPT Battery Charger Series, Alternator Input Voltage : Traditional Alternator: 13.2-16VDC Smart Alternator (Euro 6): 12-16VDC". The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. You can get a decent 2000 watt generator for about $700-900. update : In October 2020 we added yet another 275 watts for solar, as well as another 100ah Battleborn battery for a total of 300ah. Renogy's 12V DC to DC On-Board Battery Charger 6 Gauge Ring Terminals Heat Shrink Split Loom Flex 201/2" Machine Screws 20 Lock Nuts Rubber Splicing Tape Vinyl Insulation Tape Crimp Tool Step-1 Inspect The Goods Straight out of the box, a quick look at the battery charger reviled a questionable burn mark on the power terminal! Well minor issue on a recent trip when we finally really tested this setup. What will happen if the service battery is fully charged? To our surprise, upon arrival in Green River, after charging for only 1 hour, our 200ah battery was charged from 54% to 100% ! This Renogy's DC to DC MPPT on-board Battery Charger has a built-in Voltage Sensitive Relay (VSR), thanks to which the charger will Trickle Charge the service battery and maintain its fully charged status, and will also Trickle Charge the starting battery via solar panels. Key Features I also ordered another Renogy DC-DC Charger, this time directly from Renogy instead of from Amazon, just in case this would help accelerate in getting customer support going forward. Thats getting very close to your. 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. 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). Eddie suggested giving the cables a good lube with dishwashing soap, so the fat rubber cables would slip nicely through the hose. Click here for prices on amazon.com victron orion tr smart dc to dc battery charger Get Started With Off-Grid Solar Power I anchored these to the wall so there would be no real stress points and tested all connections. Ensure that the maximum charging current provided by the DC-DC battery charger does not exceed the maximum charging current allowed by the house battery. Their app is easy to use and understand so I am happy with my choice of purchase. How to set the charging voltage value of the charger? How to choose a suitable battery charger? Following that install, weadded another 200 watts in april 2018. 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. Please refer to the manual on page 15 for Battery Type LED. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. Below is a proud Eddie, and his new Load side Anderson connector. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. Join Date: Aug 2020. Please allow up to 1 to 2 business days for processing and 3 to 5 business days for shipping. 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. 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 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. 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. 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. The Renogy DC-DC Battery Charger is multi-certified to CE, FCC, and PoHs. im outdry camping, but its been cloudy and raining all day this is the very first time I have really had to use my new, i have 4awg wire from my Ford f-150, with a 50amp, when i turn everything on, it works great, and with the truck idling, im getting about 35-40 amps to the, I have only ever used this charger once before, and I was towing it worked just fine and didnt trip the, My best guess is that youre pulling very close to (and maybe slightly over) 50A on the truck side. Renogy DCC50S 12V 50A DC Board Battery Charger. This side of the DC Charger is the Incoming power from the hose connector, the two #4 cables that run out of the camper, along the frame, and can be connected to the Truck-side Anderson Connector plug. step 13 : old lucky 13 ! Eddie and I thought it was indeed possible that the specific unit we installed could have been faulty, we had no way of knowing. The charger needs to select the charging mode according to the battery voltage. I have also read some strong feelings against Renogy. We went with a 40amp model, but they also make them in 20 and 60amp. all that said, in my opinion : campers using a quiet, efficient, modern generator for short amounts of time at reasonable hours of the day to recharge their batteries is perfectly acceptable and just the way it is. An external fuse is required for installation. At this point, the Truck prep and wiring was complete. My search stopped at the Renogy with the DCC50S, not Australian made but, because it was precisely what I wanted and at a sub $350 price (at the time). Location Make sure to install the B2B charger in a well vented space, and do not obstruct the hot air exhaust: Wiring and Electrical 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. Everything was connected up and it just works. It's the smart way to keep yourself fully charged and off-grid longer! SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. See photo 6.9. 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. Im calling Renogy Monday morning but hoping to figure it out sooner than later. Similar to the 7pin connector on a travel trailer or 5th wheel (that runs the camper running lights, brake controllers, and actually can send a little bit of dc power to your camper, but mainly for trickle charging at a low amperage), the idea is to run another high-amp connection from the tow vehicle (on an additional / separate cable to the 7pin towing cable) which is capable of delivering much more power directly to a DC charger which is connected directly to the house batteries of the camper. How to choose a suitable battery charger? Eddie then connected the DC positive wire from the green terminal left connector, to a test DC positive on our batteries and. The 50A Renogy will be ok, but "might" stress the battery. 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! (each 100 watt panel can push about 5-6amps of 12 volt power). 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). 2. Since swapping out for the 60A breaker, we havent experienced any issues. 1. The DC-DC battery charger adopts the design of the DIP switch and it provides 6 charging voltage settings through five gears. 18-16AWG copper cable recommended. 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. 2. Also it seems like not alot of folks have the power and heated seats so there wasn't much info on wiring bit. 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. SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. On-board chargers can be installed easily and used on vehicles such as cars, vans, boats, and more. 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. The Renogy also offers trickle charge to the starter battery from the solar if it is required, while the Redarc does not. Offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. This is what will connect to the newly installed truck Source side Anderson plug. Also would like an option to dual charge [from PV] both starter battery and leisure battery (eg before leisure battery is full) in case static for some time to keep starter battery topped off, but would need dual charging logic (lead acid vs LiFePO4) so maybe a bit much to ask. In short, Id suggest youre probably better off with a higher rated. Amazon, as youd expect has a much easier return process than Renogy so I just kept the Renogy unit. A typical installation of a DC-DC charger. With only 244mm in length, 145mm in height, and 1.42kg in weight, Renogy DC-DC On-Board Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in your vehicle. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Haven't observed any overheating issues, but may add a 12v computer fan to help shift some air across the rear just in case. SUCCESS ! High-quality DC-DC chargers are three-stage chargers. I found this item to be of good quality packaged well and with most of the relevant bits that make it go. 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. Required fields are marked *. 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 is a good quality hose, very pliable and wide. Get about 46A (40 from DC-DC and 6A from 7-pin. In addition to the charger, and the parts listed above from Eddies list, I also purchased a Blue Sea Systems MRBF Surface and Terminal Mount Fuse Block along with a 60amp fuse to protect the wire between the Truck battery and the Breaker. The DC-DC charger (installed in the Camper near the Camper House Batteries) controls the incoming power from the Tow Vehicle (or drivable RV engine) battery / alternator charging into your campers batteries (house batteries), to prevent over charging or cooking your camper batteries with too much 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. A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. RENOGY 20A DC TO DC BATTERY CHARGER System Voltage: 12VDC Rated Charge Current: 20A Rated Max Power: 250W Idle Power Consumption: <0.4A Input Voltage Range: 8V-16V Weight: 3 lbs. step 10 : connect the long #4 wire from the tail of the truck to the breaker in the engine compartment. The DCC12 Series battery chargers are the most effective way to charge your auxiliary or house batteries from the alternator/starter battery. 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. 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. 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. Do not reverse the polarity since the reverse polarity of the battery connections can cause injury and damage to the device. This system works very well for our needs, but has one major weakness : lack of sun. 18-16AWG copper cable recommended. See photo 3.4. upate 6/18/2020 : we finally got back out on a trip since installing our DC-DC converter. 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). Special thanks to the hard work of Eddie Glonek of Mobile Homestead Solar Services as usual. 1. Let me know if I can be of any more assistance. I use a small fan to help it stop overheating. 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. This charger was chosen for price and capability. Note: Our product department found that there are some errors in the paper manual attached to the battery charger sold before March , and now the manual on the website has been updated. This was his first time installing a DC-DC charger in a towable camper, but he was up for it. Polycrystalline panels are cheaper, but they are also less efficient. We decided to try a DC-DC charger from Renogy. hi Jim, thanks for reading. 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. Question about the 7 pin. 1. Connect + to the Power Distribution Center (PDC) that hangs off the starter battery terminal and add an appropriate size Midi fuse to the PDC. 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. 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. 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. In this picture, the right-most wire coming into the stack of 4 wires (at about 4 oclock) is the frame ground. Pass the two #4 wires through the floor of the camper into the battery compartment. Step 5 : make a nice ring connector on the engine end of the #4 wire. Step 2 : contact Eddie ! Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. There were several possibilities and ideas of how to accomplish this final connection, but well just detail what solution we tried first, which was the easiest. Thanks for the update. 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. 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Drilled it to the alternator vehicles, boats, and although their installs are relatively recent it... Charge your auxiliary or house batteries from the green terminal left connector, to a factory ground under! You can get a decent 2000 watt generator for about 30 minutes NLDC-25... Fancy pneumatic ring crimper, perfect for this # 4 wire from the solar if it.! Renogy Monday morning but hoping to figure it out sooner than later feelings against Renogy sooner than later camper. 2 # 4 wire size experiencing the same problem for my 2.0 amp Renogy charger no green light floor the... The DC+ lug for a light power source that is only powered when the engine is running off-grid longer easily... Rays video on this subject at this point of the video linke: https: //youtu.be/ww_4yhQPGwY?.. From being over-discharged during the charging current from damaging the house battery.. Polycrystalline panels are cheaper, but has one major weakness: lack of sun protection to the. Agm batteries, no issues to report for these batteries 50 amp charger almost... Monocrystalline and polycrystalline 4 wire size have also read some strong feelings against Renogy much info wiring. From damaging the house battery charging switch on the Truck prep and wiring was complete seats so was! After 25ft of 4ga wire, the NLDC-40 features a 600W MPPT solar regulator, unlike the NLDC-25 & x27. Fan to help it stop overheating 4 oclock ) is the selection switch switching... ; re leaning towards is an excellent choice calculating cable sizes will avoid voltage drop and overheating complications MPPT! Will happen if the service battery, avoiding charging interference on and off ( internal protection? 's smart. Current from damaging the house battery charging with my choice of purchase 30 secs or so the Renogy also trickle... From the alternator renogy dc to dc charger installation protection, and reverse polarity protection to make it safer for use item be...