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. 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. 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. Check out Rays video on this subject at this point of the video linke : https://youtu.be/ww_4yhQPGwY?t=643 . Please note the temperature sensor is not included and it cannot use with Lithium batteries. He then connected the #4 cable to the fish cable and pulled it through to the tail of the truck with little difficulties. step 12 : install the DC charger in the camper and connect the converter to the load connector as well as connect the DC charger to the batteries. 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. 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). While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Also note, I increased the breaker amps in a subsequent edit to this post. We still had a productive week - although maybe not quite as productive as we were hoping! 5. 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. Please allow up to 1 to 2 business days for processing and 3 to 5 business days for shipping. Managing and monitoring your energy easily and remotely in any scenario and situation. If you were going to own the van for 10 years, which would you put in? I backed up the truck, connected the Anderson connector from the truck source plug to the camper load plug. DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT(New Version). step 13 : old lucky 13 ! Eddie then zip tied down the original positive rubber boot cover jus to keep everything snug and tight on the battery terminal. 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. Attach connector plug to the tailgate of the Truck. Make sure that the entire system is a 12V system, 2. Please note the D+ Ignition Cable is not included. 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. Required fields are marked *. Ive tried connecting the D+ directly to TT battery but same thing. 1. I have dealt with Renogy Customer Service in the past, and they were very responsive. 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). If Renogy added this already, or adjusted the charging algorithm to accommodate such scenario (low PV power) it would be perfect. This system works very well for our needs, but has one major weakness : lack of sun. 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. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Eddie and I thought it was indeed possible that the specific unit we installed could have been faulty, we had no way of knowing. This diagram shows the whole connection of the DC-DC On-Board Battery Charger. 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. 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. Installing your own DC-DC Charger at home is actually incredibly simple when you follow this easy step-by-step guide! In this picture, the right-most wire coming into the stack of 4 wires (at about 4 oclock) is the frame ground. 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. 04-23-2021, 10:00 PM. The D+ Ignition cable is a design method used to identify whether the generator is started. 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. B2B chargers are hands down the best way to charge if you drive regularly IMO. CE certification. 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. Their app is easy to use and understand so I am happy with my choice of purchase. I then bought a wirthco battery doctor, but then found out that is not really designed for deep cycle batteries. I have some 4AWG that I think I can repurpose, or I'll just buy new wire off Amazon or something. See photo 6.9. Gender: Male. Is it necessary to connect? 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. 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. 1. 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. It also 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. 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). 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. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. 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. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! 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. That is, after a few days without consistent sunshine, we have no backup method for recharging our batteries. In short, Id suggest youre probably better off with a higher rated. Please allow up to 1 to 2 business days for processing and 3 to 5 business days for shipping. SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. Well after having this fitted for just over 2 weeks I can honestly say how easy it was to fit. 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. The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. Just the 7 pin trailer connections. 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 . See photo 3.4. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Renogy 40A DC-DC Charger 60 Amp Switchable Breaker 50 Amp Switchable Breaker Battery Terminal Fuse Holder (if not already on battery) 60 Amp Terminal Fuse 4 GA Cable 20 FT 100% Copper Booster Cables Anderson Type Connectors 4 GA Lugs and Heat Shrink Hydraulic Crimper Bernzomatic Torch Vamplier Electrician Scissors Uni-T Clamp-On Amp Meter At this point, the Truck prep and wiring was complete. Because that ground wasnt available, the unit just wouldnt turn on. 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. Luckily, there was an existing ground which Eddie could re-use, right under the tail. This one took a few more steps to complete after the fact than normal. 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. 3. In Eddies research and in talking with Ray, Eddie determined that it was possible that the DC-DC Charger needed a ground from the camper as well, to complete that entire circuit. 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. 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). We are feeling confident that this will be a very useful mod for our future travels. In my latest RV mod, I install a high amperage 30A 12VDC port into the bed of my 2018 Ram 3500 pickup truck. I found this item to be of good quality packaged well and with most of the relevant bits that make it go. Starts out fine when I run engine and turn on lights. 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. 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 !! These six charging voltages meet the requirements of lithium batteries and lead-acid batteries in order to provide more charging options. DC-DC Chargers are essential components for properly charging and maintaining your second battery bank in your dual battery bank system. At this point, it was WELL PAST happy hour. 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