document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); im out at Hartman Rocks, just outside of Gunnison, CO. 18-16AWG copper cable recommended. Easy to install and well made. So, we really dont need more battery capacity just an alternate backup system to recharge the batteries when there is no sun for the solar setup OR there was to be some sort of problem with our solar setup (such as a malfunctioning solar controller, etc.). 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. This system works very well for our needs, but has one major weakness : lack of sun. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! A charger like the Renogy 12v DC To DC On-Board Charger is a great vehicle charging solution. 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. Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. So I chopped the alligator clips, and these wires had an impossibly small #20 wire. Remove the (4) seat bolts at each corner of the base of the seat. Ive tried connecting the D+ directly to TT battery but same thing. The RV came with a mechanical solenoid isolator b. Question about the 7 pin. The general quiet and tranquility of being out camping is part of the magic. BTW this mod is working great, when we need it, it really fills up our lithium batteries quickly. 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. Offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Thanks for the update. We had followed the instructions as closely as possible. To get 40A @ 13.6V (544W) youd need 47.3A @ 11.5V. I had seen Ray over at Love Your RV do this upgrade on his 5th wheel, so we were hoping to do the same. Check out our UPDATED DC-DC charger review and installation video:https://youtu.be/6nAFz8mF7k8Happy New Year everyone!We took time off over the winter break . 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. What type of alternator is this on-board battery charger compatible with? 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). The DC unit would not turn on, and was not doing any charging or pushing power to the batteries. How do I set the battery since there is no display screen? 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%. Gender: Male. 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 . SUCCESS ! Meaning your panel array can be much larger when using the NLDC-40. 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. 3. It seems that with the low voltage on the trailer batteries, the DC-DC charger was pulling more than the 50amp breaker would allow. I had to swivel the seat base in order to get a socket onto the back two bolts. In short, Id suggest youre probably better off with a higher rated. 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. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Why it does this, the lithium battery will take the full 50 amps until it reaches 14.4 volts. If you get that working let me know so I can post an update. How do I set the battery since there is no display screen? Hey guys, so I've been meaning to figure out how to properly have my alternator charge my house batteries. 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. Biases to solar power when it is available. 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. Installing a Ductless mini-split on an outdoors rv travel trailer, Installing a Victron 250watt Phoenix inverter, sure wish I had found this guys blog sooner, F-150 Powerboost. What is the D+ Ignition cable? 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 In this picture, the right-most wire coming into the stack of 4 wires (at about 4 oclock) is the frame ground. 3. This one took a few more steps to complete after the fact than normal. 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. This Renogy DC-DC On-Board Battery Charger with MPPT is compatible with both traditional and smart alternators. Below is a proud Eddie, and his new Load side Anderson connector. (each 100 watt panel can push about 5-6amps of 12 volt power). Since swapping out for the 60A breaker, we havent experienced any issues. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. Luckily, there was an existing ground which Eddie could re-use, right under the tail. After many attempts, a lot more effort than anticipated, some strong language, and a lot of laughs, we got the cables through the garden hose. The DC-DC will not power on or operate until the D+ ignition cable is connected. If you have any questions, please contact us in time. Is it necessary to connect? Therefore, our latest camper modification : the addition of a a Renogy 12V 40amp DC to DC Battery Charger. Let me know if I can be of any more assistance. 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. The VSR also ensures reliable isolation between the starting battery and service battery, avoiding charging interference. 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. Great bit ov kit once up a running would Recomend, im running 640 watt renogy panels, 2000w Renogy inverter, Renogy Bluetooth, x2 Renogy smart lithium batteries, and dc50 mppt charge controller. Renogy you need to have active cooling like a small inbuilt fan to fix the overheating? 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. Nowadays, they are getting cheaper and more reliable. 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! Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. 18-16AWG copper cable recommended. Learn more from, 12V 40A 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, 12V 60A DC to DC On-Board Battery Charger, 12V 200Ah Lithium Iron Phosphate Battery w/ Bluetooth, Dimensions:8.3 x 6.9 x 2.7 in / 211 x 175 x 68 mm. Your email address will not be published. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! 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. 2. What is the D+ Ignition cable? This diagram shows the whole connection of the DC-DC On-Board Battery Charger. We just played phone tag, then email tag (with brief, non-answers to my questions). I've only got 125 watt solar panel and the best I ever see is about 7 amps. And finally, connect the a DC positive wire to switch ON the converter and see if it works. this was something I could handle on my own (with some advice from Eddie, naturally). CaptainMitch. This is what will connect to the newly installed truck Source side Anderson plug. This was puzzling to me, since it would seem that a 40amp DC charger wouldnt draw more than 40amps. step 11 : slippery silliness ! It's the smart way to keep yourself fully charged and off-grid longer! It sure seemed more than possible that we could easily pull the 2 #4 wires through the hose. Please allow up to 1 to 2 business days for processing and 3 to 5 business days for shipping. Be careful not to over-torque the terminals on the DCDC as over-torquing may cause irreparable damage (Do not exceed 16 N-m / 3.3 ft-lb). 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. 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. I now have to order that part in order of the above item to work more precisely. This took way longer than I had hoped, mainly because I had never used a hammer crimper before. 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