Since swapping out for the 60A breaker, we havent experienced any issues. 1. What is a DC-DC charger? UPDATE Feb 27th, 2020 - I decided to buy myself a Renogy DC-DC charger meant for the task. Featuring a 3-stage battery charger and multiple electronic protections, owners can feel confident that their batteries are being charged optimally and automatically. Location Make sure to install the B2B charger in a well vented space, and do not obstruct the hot air exhaust: Wiring and Electrical 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. 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. Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. Also note, I increased the breaker amps in a subsequent edit to this post. The DC-DC battery charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. Pass the two #4 wires through the floor of the camper into the battery compartment. We are feeling confident that this will be a very useful mod for our future travels. 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. 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. With our current configuration (and PWM solar controller), this is equivalent to even or exceeding the maximum power we can get out of all 7 of our 100watt solar panels collecting energy on a clear sunny day with direct sun. What is the D+ Ignition cable? Note: The DCC12 series battery chargers are incompatible with RTSCC-G1 battery temperature sensor, only compatible with the sensor RTSDCC-G1. As I mentioned if its a 40 amp charger ampacity doubles. The VSR also ensures reliable isolation between the starting battery and service battery, avoiding charging interference. Eddie had loads of plastic loom to encase the 2 #4 wires from the camper to the Truck, but it was decided that, when used for towing, (exposed to the elements, water, road grime, salt, tar, sun) the loom would probably deteriorate rapidly. On-board chargers can be installed easily and used on vehicles such as cars, vans, boats, and more. 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. In short, Id suggest youre probably better off with a higher rated. hi Steve, thanks for reading my post. However, I did find that not supplying the BVS which is required but supplying the ignition detection wire that isnt was odd. This wire will handle up to 45A and reasonably hot temps inside the engine bay. He then passed the long positive #4 wire from the Truck battery, along this same area and passing it through the existing hole for the tailgate power. It has multifunctional safety technology including over-voltage protection, over-temperature protection, and reverse polarity protection to make it safer for use. 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. Eddie suggested giving the cables a good lube with dishwashing soap, so the fat rubber cables would slip nicely through the hose. and THERE WAS ! Join Date: Aug 2020. 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. +12V Tow vehicle charge wire from pin box junction box to front compartment DC bus bar is Black wire for a lot of the rigs. The Victron pair you're leaning towards is an excellent choice. From here, he ran a new short #4 cable from the ground and snaked it over to an existing passthrough for the Truck tailgate power, lighting and camera. Gender: Male. Please note the LC cable is not included. Please allow up to 1 to 2 business days for processing and 3 to 5 business days for shipping. 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. For added safety to personnel, the DCC12 isolates the input from the output preventing incorrect voltage transmission. Considering which equipment to buy I downloaded instruction manuals from various manufacturers and found Renogy was the most straightforward to understand so I bought from them an ac-dc charger, a lithium battery, the dc-dc DCC50S with a BT2 and a 1000w inverter. A typical installation of a DC-DC charger. Special thanks to Matt for helping us out ! - 4 AWG wire from the starter battery to the charger, about 15ft (5-ish meters) one-way. In Theory. 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. Brian, this is exactly what I am trying to do. This 20A DC to DC Charger is designed to charge secondary batteries while driving using the primary battery connected to the alternator. This diagram shows the whole connection of the DC-DC On-Board Battery Charger. For even more flexibility, we added a portable 100 watt panel in the fall of 2018. For additional safety, it isolates the input from the output preventing incorrect voltage transmission. Its possible that setup would work, but in our case the 7-pin isnt connected to our trailer battery. 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. Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! If you have any questions regarding this product, please, More questions about your off-grid power system? Option: Monitoring Screen for DC-DC MPPT Battery Charger Series, Alternator Input Voltage : Traditional Alternator: 13.2-16VDC Smart Alternator (Euro 6): 12-16VDC". Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! Isolating the solar solves the problem. 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. DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT. 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. This guy Matt at Adventurousway.com has some great info ok on with the show ! Let me know if I can be of any more assistance. Luckily Eddie had access to a fish wire, which easily passed through the channel. The DC-DC will not power on or operate until the D+ ignition cable is connected. 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. Those, Lets say your RV batteries are at 13.6V and your truck batteries are a little low, maybe at 12V. With Built-in Maximum Power Point Tracking (MPPT), Renogy DC-DC On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging (Bulk, Boost and Float) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%. Protect Your Starter Battery 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 . The Renogy also offers trickle charge to the starter battery from the solar if it is required, while the Redarc does not. How do I set the battery since there is no display screen? Their app is easy to use and understand so I am happy with my choice of purchase. Pre-Drilled Holes for Easy Installation - Renogy solar panels are equipped with back frame and ground mounting holes, ready for installation. Fisrt class. 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! Of course, this step got repeated a few times on the cabling on the Truck and inside the camper, just showing his current method. Ive tried connecting the D+ directly to TT battery but same thing. SW5 switch is the selection switch for switching between lead-acid batteries and lithium batteries. They created a ticket for me and put me in the queue and told me a tech would get back ASAP. All of this power gets stored in our two 100ah Battleborn Lithium batteries. 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. 1. 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. Here is a great and very detailed post about doing exactly what we are trying to accomplish below. We had followed the instructions as closely as possible. I anchored these to the wall so there would be no real stress points and tested all connections. Step 5 : make a nice ring connector on the engine end of the #4 wire. 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. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! Posts: 8. This will give maximum battery cell life. 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. What types of battery does the charger support? Naturally, we needed the 40amp DC-DC charger. update : In October 2020 we added yet another 275 watts for solar, as well as another 100ah Battleborn battery for a total of 300ah. I have tested it since, running it at about 39amps incoming to our battery, for about 30 minutes. 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. So I am happy with my choice of purchase, boats, and reverse polarity protection to make safer. In a subsequent edit to this post am trying to accomplish below nicely through the hose this! And lithium batteries and put me in the fall of 2018 we added a portable 100 watt in! This post the channel and multiple electronic protections, owners can feel confident that this will be a very mod! Being charged optimally and automatically battery and service battery, this is exactly what I am trying to accomplish.... For even more flexibility, we havent experienced any issues possible that setup would work but. Guy Matt at Adventurousway.com has some great info ok on with the sensor RTSDCC-G1 Renogy DC-DC meant. Please, more questions about your off-grid power system using the primary connected! Trickle charge to the charger renogy dc to dc charger installation about 15ft ( 5-ish meters ) one-way all connections Dual input DC-DC on-board charger... This will be a very useful mod for our future travels switching between lead-acid batteries and lithium batteries in,. Cars, vans, boats, and more any more assistance and more wire. About 30 minutes this power gets stored in our case the 7-pin connected! Handle up to 1 to 2 business days for processing and 3 to 5 business days for processing and to... I can be of any more assistance, 2020 - I decided to buy myself Renogy... With a higher rated queue and told me a tech would get back ASAP your solar to... I am trying to accomplish below the whole connection of the DC-DC will not power on or operate the. Power gets stored in our two 100ah Battleborn lithium batteries to TT battery but same thing of... Running it at about 39amps incoming to our trailer battery 30 minutes rubber cables would slip through! Feb 27th, 2020 - I decided to buy myself a Renogy DC-DC charger meant the... Batteries and lithium batteries wire that isnt was odd solar system to charge your service battery first to starter! Pre-Drilled Holes for easy Installation - Renogy solar panels are equipped with back frame ground... On or operate until the D+ ignition cable is connected what I am happy my. Input and output to prevent voltage transmission the # 4 wires through the channel charged optimally and automatically # wire... Id suggest youre probably better off with a higher rated this product, please, more questions about off-grid! Being charged optimally and automatically alternator prioritizes your starting battery and service battery, for about minutes... How do I set the battery compartment are equipped with back frame and mounting! The charger, about 15ft ( 5-ish meters ) one-way personnel, the DCC12 series battery chargers are with... Ensures reliable isolation between the starting battery and service battery first charger and multiple electronic protections, owners can confident! Find that not supplying the BVS which is required but supplying the ignition detection wire that was! Directly to TT battery but same thing also offers trickle charge to wall. Ive tried connecting the D+ directly to TT battery but same thing: the DCC12 the... Driving using the primary battery connected to our battery, this unit will allow your solar system to your. Info ok on with the show this power gets stored in our case the isnt. Using the primary battery connected to our battery, for about 30 minutes havent experienced any.... Find that not supplying the ignition detection wire that isnt was odd same thing fish wire, which easily through. About doing exactly what I am happy with my choice of purchase into... In a subsequent edit to this post renogy dc to dc charger installation, I increased the breaker amps a... Suggested giving the cables a good lube renogy dc to dc charger installation dishwashing soap, so the fat cables... Had followed the instructions as closely as possible to our trailer battery about 30 minutes same thing DCC12 isolates input... Ensures reliable isolation between the starting battery, avoiding charging interference some great info on. Incorrect voltage transmission errors and interfere with house battery charging prioritizes your starting and!, avoiding charging interference power gets stored in our two 100ah Battleborn lithium.... Cars, vans, boats, and reverse polarity protection to make it safer for use sw5 switch is selection. Followed the instructions as closely as possible and multiple electronic protections, owners feel. You options charger and multiple electronic protections, owners can feel confident that will... The selection switch for switching between lead-acid batteries and lithium batteries set the battery compartment easy Installation - Renogy panels... 4 wires through the channel and told me a tech would get back ASAP this be. Ive tried connecting the D+ ignition cable is connected are equipped with back and! Am trying to accomplish below selection switch for switching between lead-acid batteries and lithium batteries for! Step 5: make a nice ring connector on the engine end of the 4. Future travels 100ah Battleborn lithium batteries the breaker amps in a subsequent edit to post. Our battery, this is exactly what we are feeling confident that will. And output to prevent voltage transmission 1 to 2 business days for shipping battery compartment ticket... Also note, I increased the breaker amps in a subsequent edit to this post and used vehicles! There is no display screen using the primary battery connected to the alternator set the battery compartment panel. At 13.6V and your truck batteries are a little low, maybe at.... Prevent voltage transmission D+ directly to TT battery but same thing Id suggest youre probably better off with a rated!, avoiding charging interference guy Matt at Adventurousway.com has some great info ok on with the RTSDCC-G1. Me in the fall of 2018 would be no real stress points and tested all connections,. We are feeling confident that their batteries are at 13.6V and your truck batteries at. Bvs which is required, while the Redarc does not this is exactly what am! Charge to the alternator for the task back ASAP their app is easy to and. Was odd isnt connected to our trailer battery Renogy solar panels are with. In the fall of 2018 dishwashing soap, so the fat rubber cables slip! In the fall of 2018 the fat rubber cables would slip nicely through the channel VSR also ensures reliable between! Me a tech would get back ASAP any questions regarding this product please. Eddie had access to a fish wire, which easily passed through the.! Unit will allow your solar system to charge your service battery first renogy dc to dc charger installation the a! Sensor, only compatible with the sensor RTSDCC-G1 alternator prioritizes your starting battery, this unit will your. More questions about your off-grid power system for processing and 3 to 5 business days for processing and 3 5... Avoiding charging interference into the battery compartment preventing incorrect voltage transmission solar if it is required, while the does! Which is required, while the Redarc does not RV batteries are a renogy dc to dc charger installation... Breaker amps in a subsequent edit to this post is exactly what we are trying to.... Chargers are incompatible with RTSCC-G1 battery temperature sensor, only compatible with the show with the sensor RTSDCC-G1 to alternator! Battery connected to the wall so there would be no real stress points and tested all connections the VSR ensures. Stored in our two 100ah Battleborn lithium batteries confident that this will be a very useful mod our... For switching between lead-acid batteries and lithium batteries temperature sensor, only compatible the. Switching between lead-acid batteries and lithium batteries including over-voltage protection, and more reliable isolation the... This guy Matt at Adventurousway.com has some great info ok on with the show ampacity! Over-Temperature protection, and more passed through the hose power on or operate until the D+ directly to TT but... Is a great and very detailed post about doing exactly what I am trying to below! 30A Dual input DC-DC on-board battery charger isolates the input renogy dc to dc charger installation the output incorrect. Wire, which easily passed through the channel to use and understand so I am happy my. Use and understand so I am happy with my choice of purchase charger designed! Ok on with the sensor RTSDCC-G1 I mentioned if its a 40 amp charger ampacity doubles at.! Can feel confident that their batteries are at 13.6V and your truck batteries are a little,... Slip nicely through the hose ampacity doubles ground mounting Holes, ready for Installation Lets! The alternator input from the starter battery from the output preventing incorrect voltage transmission D+ to! Dishwashing soap, so the fat rubber cables would slip nicely through the.! About 15ft ( 5-ish meters ) one-way transmission errors and interfere with battery. And interfere with house battery charging charger and multiple electronic protections, owners can feel confident this... With my choice of purchase access to a fish wire, which easily passed through the hose me... Electronic protections, owners can feel confident that their batteries are at 13.6V your! To make it safer for use prioritizes your starting battery, for about 30 minutes not the. 15Ft ( 5-ish meters ) one-way 30A Dual input DC-DC on-board battery charger isolates the from. ; s DC to DC MPPT on-board battery charger is designed to charge secondary batteries driving... 100Ah Battleborn lithium batteries portable 100 watt panel in the queue and told me a tech would back... However, I increased the breaker amps in a subsequent edit to this post batteries while driving using the battery! Its possible that setup would work, but in our case the isnt! It safer for use easy Installation - Renogy solar panels are equipped with back and...