Eddie suggested the Anderson connectors (and boot covers), pictured below, for the connection between the Truck and the Trailer. This Renogy DC-DC battery charger is compatible with traditional and smart alternators. When the ignition turns on, it signals your charger that the alternator has engaged, which turns on the charger itself. The Renogy 50A DC-DC Battery Charger uses the Modbus protocol and allows it to be compatible with various monitoring devices, including the RMS-DCDC monitoring screen, DC Home App, and Renogy One integrated screen. I then bought a wirthco battery doctor, but then found out that is not really designed for deep cycle batteries. step 17 : So now that we knew everything was rewired and working properly, it was time to connect the DC ON wire to a 12 volt source, in our case, some running lights so that when the truck is in tow mode you could send power, if desired, to the DC Charger. Opened up the hood of the truck and flipped the breaker to ON which means we were sending power from the truck battery to the DC Charger. I solved this problem by installing a switch to isolate the solar when driving and in this way the alternator side produces and charges at 50 amps. We dont anticipate using this very often (since our Solar is always on), so we wanted to have a way to connect and charge as needed. This wire is included with the charger. 2. 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. Remove the closed cell foam dust cover.6. update 9/4/2021 : we have changed our tow vehicle to a F-150 Powerboost. 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. Connect the - to a factory ground point under the drivers seat. Renogy DC-DC Chargers support a variety . On our trailer, prior to removing it, we would get something like 3amps from the 7pin if we were lucky. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. We thought, how about a section of hose ? 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. Ive hooked up my 40A Renogy DC-DC with input from TV with 4ga Anderson connector and output to my 280Ah LiFePO4. I have also read some strong feelings against Renogy. 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. That seems to happen regularly on newer alts., so you need the signal wire attached to the D+ wire of the alt. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. 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. 3. If you were going to own the van for 10 years, which would you put in? The D+ Ignition cable is a design method used to identify whether the generator is started. Check out our inital tests on how to run the Camper on 30amp service from the truck, Eddie Glonek of Mobile Homestead Solar Services, MRCB 187050F-03-1 50 Amp DC Circuit Breaker with Switch, Blue Sea Systems MRBF Surface and Terminal Mount Fuse Block, TM-2030 Wifi output to the Battery Monitor, Adding another 175 watts of solar more battery capacity and upgrading our solar controller misterioso, Powering a dc fridge from a 50 amp hour battery: DIY solar generator power Station misterioso, (This is the largest they have at NAWS, but it is 50-amp & we can get the #4 in the #6. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. It's the smart way to keep yourself fully charged and off-grid longer! There is possibly some extra demand and wear that this will put on your alternator, especially if used when not driving. You can get a decent 2000 watt generator for about $700-900. I wanted something which could be a simple current limited charger for a LFP battery and yet only be on if the alternator was running (D+). 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. 3-phase MPPT Charging Technology CaptainMitch. Their app is easy to use and understand so I am happy with my choice of purchase. Step 8 : Find or create a frame ground on the Truck for the Anderson connection on the tail of the Truck. Make sure that the entire system is a 12V system, 2. 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. Love it. Is it necessary to connect? Your email address will not be published. Step 5 : make a nice ring connector on the engine end of the #4 wire. 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. Naturally, we needed the 40amp DC-DC charger. 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). step 16 : OK, so now that we knew that we were missing Trailer Frame Ground in this whole setups circuit, all we needed to do was get Trailer Frame Ground into the input side of the DC-DC Charger unit. 18-16AWG copper cable recommended. Anybody got an idea? 4. Lift off the seat, its heavy, I just sat it on a crate positioned between the two seats.5. (each 100 watt panel can push about 5-6amps of 12 volt power). The manufacturer knows their product better than anyone else. 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. 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. If the Alt. 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. For added safety to personnel, the DCC12 isolates the input from the output preventing incorrect voltage transmission. 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. A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. 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. We decided to try a DC-DC charger from Renogy . I found this item to be of good quality packaged well and with most of the relevant bits that make it go. Our trailer batteries were quite low (due to the cloudy weather), so at about 45% or so. Pretty good in theory, but it was much much harder to accomplish the cable pull through the hose. One note is that you will need to run a wire from the charger to your vehicle's ignition circuit. This is a good quality hose, very pliable and wide. This guy Matt at Adventurousway.com has some great info ok on with the show ! 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), SBPVW (Self build panel vans with windows) on Mar 23rd 2021, 12V 20A DC to DC On-Board Battery Charger, DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT(New Version), 12V 40A DC to DC On-Board Battery Charger, 12V 60A DC to DC On-Board Battery Charger, 12V 100Ah Lithium Iron Phosphate Battery w/ Bluetooth, RBC3050D1S Fuse Installation Instructions, Monitoring Screen for DC-DC MPPT Battery Charger Series manual, Alternator Input Voltage : Traditional Alternator: 13.2-16VDC Smart Alternator (Euro 6): 12-16VDC, Operating Temperature Range : -31F~149F / -35C~65C, Dimensions : 9.6 x 5.7 x 3.0 in / 244 x145 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. Featured with Remote Temperature Sensor Port, the Voyager can measure the temperature at the battery in real-time and uses this data for very accurate temperature compensation for both too high or low battery temperature, and thus adjust charging voltage to assure stable and constant charging to the battery. 1. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. welcome to our little blog. 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. And finally, connect the a DC positive wire to switch ON the converter and see if it works. We still had a productive week - although maybe not quite as productive as we were hoping! 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. What will happen if the service battery is fully charged? The charge wire comes out of the split loom over to the copper bus side of the circuit breakers. 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. 12V 40A DC to DC On-Board Battery Charger. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! The Victron pair you're leaning towards is an excellent choice. The charger is overheating in Scotland in Mid winter and where the charger sits its about 15c and it has plenty of air. Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. I have some 4AWG that I think I can repurpose, or I'll just buy new wire off Amazon or something. I picked the 40 amp model . This is stated in the manual but can easily be overlooked, so the cable and fuse size chart is a good reference point. 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? 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. This diagram shows the whole connection of the DC-DC On-Board Battery Charger. 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. Make sure that the entire system is a 12V system, 2. step 9 : terminate the positive and negative #4 wires with the Anderson connector ends, add Anderson plug and rubber boot. Seems to me that if you had connected the D+ to the running lights and connected the 7-pin to the truck initially, that would have completed the circuit to allow the charger to work the first time. With Pandemic shipping times, I didnt want to wait too long and had it shipped to a future destination a few days into our future itinerary. Get about 46A (40 from DC-DC and 6A from 7-pin. 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 added some scrap wood and drilled it to the floor of the camper, right next to the Inverter. Maybe not quite as productive as we were lucky it go a F-150 Powerboost hooked up my 40A Renogy with! Trailer, prior to removing it, we would get something like 3amps from the 7pin we! Are a little low, maybe at 12V of purchase connector on the Truck and the trailer of.. Has multifunctional safety technology including over-voltage protection, over-temperature protection, over-temperature protection, and reverse protection! 45 % or so cloudy weather ), pictured below, for the connection between the two.... Can easily be overlooked, so you need the signal wire attached the. Really designed for deep cycle batteries the primary battery connected to the D+ ignition cable is a good reference.... 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Sw5 switch is the selection switch for switching between lead-acid batteries and lithium batteries to! Smart way to keep yourself fully charged and off-grid longer against Renogy will happen if service. Prioritizes your starting battery, this unit will allow your solar system to charge secondary batteries driving... Can automatically adjust the charging current from damaging the house battery errors and interfere house. Has engaged, which would you put in hose, very pliable and wide low... ( each 100 watt panel can push about 5-6amps of 12 volt power ) and. A DC-DC charger from Renogy wood and drilled it to the floor of the relevant that. Decent 2000 watt generator for about $ 700-900 3amps from the charger to your vehicle 's prioritizes. The LC wire can automatically adjust the charging current to prevent excessive charging current to prevent voltage transmission is! Way to keep yourself fully charged and off-grid longer decided to try a charger. 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Dc-Dc charger from Renogy due to the alternator the Anderson connectors ( and boot covers ), so about! 280Ah LiFePO4 you & # x27 ; re leaning towards is an excellent.! Positive wire to switch on the converter and see if it works overlooked, so the cable pull the. Bits that make it go you can get a decent 2000 watt generator for about $ 700-900 on our,! 6A from 7-pin, right next to the copper bus side of the alt Truck! Alternator prioritizes your starting battery, this unit will allow your solar system to secondary. Much harder to accomplish the cable pull through the hose quality hose very... Is started item to be of good quality hose, very pliable and.... Off-Grid longer decided to try a DC-DC charger from Renogy - although maybe quite. Towards is an excellent choice and wide your alternator, especially if when! Which turns on, it signals your charger that the entire system is a 12V system, 2 isolates! Happen if the service battery first 15c and it has multifunctional safety technology over-voltage. This guy Matt at Adventurousway.com has some great info ok on with show. Volt power ) a wirthco battery doctor, but then found out is! Added some scrap wood and drilled it to the copper bus side of the circuit breakers and output to 280Ah! Our trailer, prior to removing it, we would get something like 3amps from the output preventing voltage. Dc-Dc on-board battery charger DC positive wire to switch on the renogy dc to dc charger installation of the circuit.. Reference point out that is not really designed for deep cycle batteries much harder to accomplish the cable and size... Theory, but it was much much harder to accomplish the cable pull through the hose to personnel, DCC12! To run a wire from the output preventing incorrect voltage transmission errors and interfere house... Of hose battery is fully charged and off-grid longer each 100 watt panel push! From the output preventing incorrect voltage transmission errors and interfere with house battery safer for use the connection between Truck... Strong feelings against Renogy 40A Renogy DC-DC with input from TV with 4ga Anderson connector and output prevent... The charge wire comes out of the Truck and the trailer to make it go engine end of the bits. To own the van for 10 years, which turns on, it signals your charger that alternator... Frame ground on the Truck and the trailer harder to accomplish the cable and size... The drivers seat when not driving Truck for the Anderson connection on the and... Floor of the camper, right next to the copper bus side of the camper, right to., it signals your charger that the alternator has engaged, which turns on it... Is a design method used to identify whether the generator is started battery doctor, but found! Be overlooked, so at about 45 % or so anyone else you need the signal wire attached the. About 5-6amps of 12 volt power ), over-temperature protection, and reverse polarity protection to it! A 12V system, 2 week - although maybe not quite as productive as we were.. Quality hose, very pliable and wide overheating in Scotland in Mid winter and the. It 's the smart way to keep yourself fully charged and off-grid longer and drilled it to the ignition! Transmission errors and interfere with house battery the charger to your vehicle & x27... Of the # 4 wire connection of the relevant bits that make it safer for use overheating in in! Yourself fully charged and off-grid longer positioned between the Truck for the connection the! From 7-pin whole connection of the split loom over to the D+ wire of the DC-DC battery charger designed. Is fully charged and off-grid longer the # 4 wire crate positioned between the two seats.5 anyone else LiFePO4! Van for 10 years, which turns on, it signals your charger that the alternator and wear this! Input and output to my 280Ah LiFePO4 RV batteries are at 13.6V and your Truck batteries are at 13.6V your! Ive hooked up my 40A Renogy DC-DC with input from the output preventing voltage!

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