hi Jim, thanks for reading. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! For battery settings please refer to the Manual Book on page 12&15. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. 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. 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 The Victron pair you're leaning towards is an excellent choice. 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. Once connected, I fired up the truck, flipped the breaker in the engine compartment, and it was time to test the DC positive on wire. UPDATE Feb 27th, 2020 - I decided to buy myself a Renogy DC-DC charger meant for the task. 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. I have some 4AWG that I think I can repurpose, or I'll just buy new wire off Amazon or something. 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%. First thing the next morning, I got in touch with Renogy tech support, but due to the Pandemic, you couldnt just get connected directly to a tech. Get about 46A (40 from DC-DC and 6A from 7-pin. 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). Bought a 170 lithium battery from renogy 4 months ago and one major issue shows up every-time. The battery temperature sensor for DC-to-DC car battery chargers can be purchased at the Renogy store. Solar is to be fitted over the next couple of months again we will be getting a renogy kit, well worth the money our last big item will be 3000w 12v inverter to run all our electrical equipment, We are well pleased with all our purchases. I was able to return the original DC unit to Amazon, now that I had a second unit directly from Renogy (now that we knew the original unit was not defective). On the negative, only the two negative marker wires where cut, as well as the negative tiny wire to the TPMS. The battery temperature sensor for DC-to-DC car battery chargers can be purchased at the Renogy store. How do I set the battery since there is no display screen? I have dealt with Renogy Customer Service in the past, and they were very responsive. This can be configured to do just that. Installing your own DC-DC Charger at home is actually incredibly simple when you follow this easy step-by-step guide! If you have any questions regarding this product, pleasesubmit a case. / 1.3 kg Equalization Voltage: N/A Float Voltage: 13.2-13.8v Boost Voltage: 14.1-14.7v Operating Temperature: -20C to +50C If you have any questions regarding this product, pleasesubmit a case. 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. 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. 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. 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. I will try and ask Eddie if a smaller gauge wire would work. So far I've installed a BMV-712, a 100/20 MPPT Solar controller and an Orion-TR Smart 12/12 30amp DC-DC charger. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 1. 1. I know for sure the 4g worked just fine, so Id just go with that. Join Date: Aug 2020. 18-16AWG copper cable recommended. 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. 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. 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. 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. 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. Next up was creating a camper-side connector wire, which would run from the tail of the Truck, along the inside of the A-Frame of the trailer, and terminate inside the camper near the battery compartment, existing inverter, and the soon to be installed DC charger. The DC-DC will not power on or operate until the D+ ignition cable is connected. 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. Comes with sturdy compact design, this Renogy DC-DC On-Board Battery Charger with MPPT can be safely and easily connected to any 12-volt system and allows safe operation in any position or portable devices without the worry of incorrect connections or sparks. The Renogy DC-DC Battery Charger with unique dual charging options. 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). What is a DC-DC charger? Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. This is what will connect to the newly installed truck Source side Anderson plug. hi Brian, probably no big deal to leave the 7 pin wired for trickle charge. just something to consider. 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. 1. 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. The key components of a solar van installation are: Solar panels: Solar panels come in two main types: monocrystalline and polycrystalline. This is a good quality hose, very pliable and wide. The D+ Ignition cable is a design method used to identify whether the generator is started. Step 3 : gather the parts and gear needed for the install. This was puzzling to me, since it would seem that a 40amp DC charger wouldnt draw more than 40amps. Attach connector plug to the tailgate of the Truck. Haven't observed any overheating issues, but may add a 12v computer fan to help shift some air across the rear just in case. Im calling Renogy Monday morning but hoping to figure it out sooner than later. How do I set the battery since there is no display screen? 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. 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. Starts out fine when I run engine and turn on lights. 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. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. 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. The Renogy also offers trickle charge to the starter battery from the solar if it is required, while the Redarc does not. 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. 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. How to choose a suitable battery charger? When connected with two batteries, it is vital to be able to isolate the two start and service batteries for charging safety. Installing the Sterling BB1260 battery to battery charger First of all, as always, make sure to read the manual (choose the latest version). Considering this when calculating cable sizes will avoid voltage drop and overheating complications. Do not reverse the polarity since the reverse polarity of the battery connections can cause injury and damage to the device. Winnebago Camper. 2. 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. 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. This wire will handle up to 45A and reasonably hot temps inside the engine bay. Renogy you need to have active cooling like a small inbuilt fan to fix the overheating? For added safety to personnel, the DCC12 isolates the input from the output preventing incorrect voltage transmission. Please note the D+ Ignition Cable is not included. We went with a 40amp model, but they also make them in 20 and 60amp. 2. 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.. 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. 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. This would complete the Truck positive and ground for the power output from the battery. 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. 4. 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. It seems that with the low voltage on the trailer batteries, the DC-DC charger was pulling more than the 50amp breaker would allow. The Renogy DC-DC Battery Charger is multi-certified to CE, FCC, and PoHs. May give you a start on finding it. Is it necessary to connect? Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. So if you leave the solar on on a cloudy day, yo will get 25 amps from the alternator and maybe 1 amps from the solar, you are then losing around 24 amps. Note: The DCC12 series battery chargers are incompatible with RTSCC-G1 battery temperature sensor, only compatible with the sensor RTSDCC-G1. If you have any questions regarding this product, please, 12V 20A DC to DC On-Board Battery Charger, Battery Temperature Sensor for DC to DC on-board Battery Charger, DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT, 1000W 12V to 230V/240V Pure Sine Wave Inverter With English Standard Socket (with UPS Function), 12V 60A DC to DC On-Board Battery Charger, 3000W 12V Pure Sine Wave Inverter Charger w/ LCD, 12V 200Ah Lithium Iron Phosphate Battery w/ Bluetooth, 12V DC to DC On-board Battery Charger Manual V1.2. 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. 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. 18-16AWG copper cable recommended. 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). Fisrt class. 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. In Theory. I had always wanted to connect our Trailer TPMS signal booster to a running light power, so that we didnt have to remember to connect it each time we were towing. Please refer to the manual on page 15 for Battery Type LED. On our setup, we removed it, but not part of this mod, it was something we did when we removed the house batteries from the tongue and removed the stock converter setup. The Renogy hides the input cables and uses posts to connect the ca. The charger needs to select the charging mode according to the battery voltage. I verified that, even IF the DC Charger has its red DC ON wire connected to power, the unit will NOT turn on, unless it has incoming DC power. After flying back home, we were not ready to give up our new lifestyle yet, so we bought a minivan, converted it into a DIY minivan camper, and drove across Canada in search of beautiful campsites and stunning mountains to climb. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. The DC-DC battery charger is installed between the starter battery and the house battery. Renogy DCC50S 12V 50A DC Board Battery Charger. Naturally, we needed the 40amp DC-DC charger. These WAGO connections are great because they are super quick, solid and sturdy, but also can accept many different types of wire sizes and without any crimping. Also protects the vehicle charging system from over depleting the vehicle battery. If the Alt. How to set the charging voltage value of the charger? Probably when youre towing, the truck battery voltage is higher hence its not happening. : 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. 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