RV Trip Planning Discussions

Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Travel Trailer Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-22-2020, 12:36 PM   #1
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
Solar with inverter/charger

Quick question...
I have a 2020 Grand Design Reflection 315rlts, I would love to add Solar with an inverter/charger. Curious about how to remove existing converter from the equation. Watched lots of videos and none of them really talk about specifically how to do that.

I want a nice 3k inverter/charger. Not sure if I should get one with a built in ts or wire in separate one. Going to feed entirely trailer, we just know what not to use.

Main usage, televisions, plugs to charge items, coffee maker,with occasional microwave use (usually a few minutes at a time).

So many ways to do this.

Plan to get lithium batts at some time, but for now I have two 6v golf cart batts.

Looking at 200 - 400 watts on top.

Any thoughts and ideas?

Thanks,
Bill
__________________

__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-22-2020, 01:01 PM   #2
Senior Member
 
R.Wold's Avatar


 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jan 2019
Location: Rosemary Farm, Northern Ca
Posts: 1,592
Quote:
Originally Posted by Redapple View Post
Quick question...
I have a 2020 Grand Design Reflection 315rlts, I would love to add Solar with an inverter/charger. Curious about how to remove existing converter from the equation. Watched lots of videos and none of them really talk about specifically how to do that.

I want a nice 3k inverter/charger. Not sure if I should get one with a built in ts or wire in separate one. Going to feed entirely trailer, we just know what not to use.

Main usage, televisions, plugs to charge items, coffee maker,with occasional microwave use (usually a few minutes at a time).

So many ways to do this.

Plan to get lithium batts at some time, but for now I have two 6v golf cart batts.

Looking at 200 - 400 watts on top.

Any thoughts and ideas?

Thanks,
Bill
Donít remover your converter. It runs off 110v and makes your 12v so itís still useful. Install your inverter before your converter such that your inverter is powering your 110v panel and your converter gets its power from there .

Even if you stay with 12v for your entire system (inverter and solar panels), which Iím guessing you are given the 200-400w solar goal, your converter is still useful because it will provide your 12v while plugged in.

I can see the logic of removing the converter, having 12v solar and 12v batteries providing all your 12v needs and your 12v inverter charging it all, but if you ever sell the trailer youíd have to reinstall all the original stuff if you want to keep your solar/Chargers/inverter for the next unit.

Leaving your converter in the system is a little less efficient (converting solar power to 110v, then back to 12v) itís an easier install. The only change Iíd make is to disconnect the charger side of the converter-charger, and let the inverter charge your batteries for the sake of efficiency, but even that isnít really necessary. Whatever you do Iíd leave all original equipment and wiring in place and label anything you disconnect for future reference.
__________________

__________________
2010 Bay Star 2901: 1.9kw residential solar, Victron controllers, monitors, and 3kw inverter; 32.8v Leaf Lithium battery bank.
R.Wold is online now   Reply With Quote
Old 03-22-2020, 01:05 PM   #3
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
Thanks, the one I was looking at replaces the existing converter/charger.

What they effectively did was go from the shore connection directly to the new inverter/charger (with the bui6in transfer switch) and just feed the 110 and 12v distribution. That is where I need some guidance
__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Old 03-22-2020, 01:13 PM   #4
Senior Member
 
R.Wold's Avatar


 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jan 2019
Location: Rosemary Farm, Northern Ca
Posts: 1,592
What inverter/charger did you buy? When you say ”what they effectively did...” who is they? OEM? It would be most helpful if you listed exactly what equipment you currently have, what you plan to buy, and what, if any, modifications have already been performed.

You should still have your original transfer switch in place and operational. That chooses between shore, generator, or inverter 110v. The transfer switch in the inverter just decides whether or not to provide 110v from the battery bank, and if it’s smart enough, generator support as well. And in my case, it will even support the pedestal power if it’s in a low voltage condition. But it’s purpose is just to decide whether or not to provide 110v from your batteries. It’s not typically a replacement for your OEM transfer switch.

Either way you can still just leave your converter in place. It is powered by your 110v panel (most likely is plugged in to an outlet in the compartment where it’s mounted), which should now be powered by your inverter.

If you want your inverter/charger to be the sole source of 12v (Providing 12v while charging from the sun or pedestal), the just disconnect your converter and leave it in place: your inverter/charger will charge your batteries and your batteries can provide your 12v directly. I wouldn’t do it this way, but if you really want to eliminate your converter, that’s how you’d do it.
__________________
2010 Bay Star 2901: 1.9kw residential solar, Victron controllers, monitors, and 3kw inverter; 32.8v Leaf Lithium battery bank.
R.Wold is online now   Reply With Quote
Old 03-22-2020, 02:17 PM   #5
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
Thank you for the detailed explanation. I have a travel trailer with no generator or transfer switch. Either shore power or battery.

I have purchased nothing or made any modifications yet. Doing research to understand how best to implement for my use.

Victron makes an excellent device that will do all of the things I want and allow me to adjust the charging profile when I upgrade the batteries.

Single device that allows pass through when connected to shore power, or allow batts, and solar and inverter to work together.

Watched several videos done by some of the more popular rv bloggers. I have no intention on spending the kind of money they did, but looking at designing smaller scale of what they did.

Those folks are full time, I am not.

Thanks,
Bill
__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Old 03-22-2020, 03:39 PM   #6
Member
 
Join Date: Feb 2020
Posts: 51
I have a similar sized system (280 watts) on my 18ft TT. I did a lot of research prior to setting it up and I decided just to use a MPPT Solar Charge controller connected directly to the battery bank. I added a separate inverter that I can plug my shore power into if I want AC power. One thing to be aware of is, if you leave your converter in place (I would) and connect your shore power to the inverter you should disconnect the battery from converter. If you leave it, the inverter will draw power from the batteries and run the converter, the converter will then try to charge the batteries. I read this is a potential fire hazard, that seems unlikely to me if everything is properly protected with fuses, I am no expert in this area. It does seem like it will create a lot of wasted energy. In my system, I have 3 circuit breakers, one between the batteries and the trailer (main one it came with), one between the SA Charge controller and the batteries, and one between the inverter and the batteries. If I want AC power to the entire TT, I flip off the battery to TT breaker and plug the shore power into the inverter.

A couple of things I did that I am happy with that I'd recommend:
1. I wired 2 outlets that just go to the inverter. That way I can run just those without powering the entire TT with all it's parasitic losses.
2. I bought a larger 24 Volt SA Panel. To efficiently use that you need an MPPT charge controller. The 24 Volt panel has 2 big pluses in my opinion. First, you can run lighter gauge wire from the panel to the SA Charge controller. I kept my panel free standing and have a 25 ft cord (made from a 10 gauge outdoor extension cord). I can park the TT in the shade and put the panel in the sun. I can tilt and move the panel to get maximum SA input. Second, most 12 volt panels sell for about $1/Watt, I got my panel for $160, so about $0.57/Watt.

My system isn't the nicest but it works for me. I use my TT 6 times a year for between 4 and 8 days each trip. In the 2 years I have owned it, I haven't ran a generator once. I'd like Lithium batteries primarily for the weight and ability to draw down further. Going from memory, I spent $160 for the panel, $100 for SA Charge controller, and $100 for a 1000W inverter. Throw in the extension cord and conncetors and call it $400 total. About the cost of 2000W inverter generator.

Last thing, I have about 200 AH of flooded lead acid batteries. I am pretty miserly on the power consumption. LED lights, propane fridge, water pump, phone charge, tooth brush charge, furnace if it is below 50 (wife insists). The movable panel completely charges the batteries if it gets 4 hours of sun. Which makes sense if I am using about 70 AH per day. If pushed the batteries to 40% SOC, I would need to add back 120 AH each day. The panel would need about 8 hours of sun (or another panel).
__________________
Tom
2017 RAM 1500 4x4 5.7 HEMI
2015 PCW ECON 18RBS
Tomahawk is offline   Reply With Quote
Old 03-22-2020, 08:01 PM   #7
Senior Member
 
Join Date: Oct 2015
Location: Washington
Posts: 424
You can leave your OEM converter in place, just turn off the breaker, that is what I did. If for some reason I ever had a problem with my inverter, and I have shore power my batteries could still be charged.

Also, do you have a 30a or 50a shoreline? Setting up a single pass though inverter/charger is much easier and straight forward on 30a then 50a
__________________
2016 Chevy 3500 DRW, crew cab. 2016 Fuzion 325T
675ah AGM, MSH 3012 inverter, 960w Solar.
Nwcid is offline   Reply With Quote
Old 03-22-2020, 08:30 PM   #8
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
I have 50 amp service
__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Old 03-22-2020, 08:41 PM   #9
Senior Member
 
Join Date: Oct 2015
Location: Washington
Posts: 424
Quote:
Originally Posted by Redapple View Post
I have 50 amp service
I am not aware of a company that makes an inverter that will do straight pass though 50a the way an RV is wired. I went though this last year when I did my set up.

Many inverters have either a 30a or 60a pass through for the AC side. This means you will only be able to wire it to one side of your input. You may have to change some things around in your power distribution box, I had to.
__________________
2016 Chevy 3500 DRW, crew cab. 2016 Fuzion 325T
675ah AGM, MSH 3012 inverter, 960w Solar.
Nwcid is offline   Reply With Quote
Old 03-22-2020, 08:43 PM   #10
Senior Member
 
R.Wold's Avatar


 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jan 2019
Location: Rosemary Farm, Northern Ca
Posts: 1,592
Whatís the Victron part #. As you can see by my sig, Iím a member of the Victron faithful. Two Blue Solar MPPT 150/35 controllers, Color Control GX, BVM700 and Multi-plus 24/3000 inverter.
__________________
2010 Bay Star 2901: 1.9kw residential solar, Victron controllers, monitors, and 3kw inverter; 32.8v Leaf Lithium battery bank.
R.Wold is online now   Reply With Quote
Old 03-22-2020, 08:53 PM   #11
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
Quote:
Originally Posted by R.Wold View Post
Whatís the Victron part #. As you can see by my sig, Iím a member of the Victron faithful. Two Blue Solar MPPT 150/35 controllers, Color Control GX, BVM700 and Multi-plus 24/3000 inverter.
Was looking at this one:
Victron Multiplus 12/3000/120-50 120V VE.Bus
__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Old 03-22-2020, 09:06 PM   #12
Senior Member
 
Redapple's Avatar
 
Join Date: May 2006
Location: SoCal
Posts: 1,079
I am beginning to see I will need to adjust what I am able to realistically accomplish.
__________________
2020 Grand Design Reflection 315RLTS
2019 GMC Sierra Denali Duramax
Redapple is offline   Reply With Quote
Old 03-22-2020, 10:08 PM   #13
Senior Member
 
jcussen's Avatar
 
Join Date: Jul 2018
Posts: 1,952
Quote:
Originally Posted by Redapple View Post
Was looking at this one:
Victron Multiplus 12/3000/120-50 120V VE.Bus
Yes, have that one, can not go wrong, plus its a hybrid, will battery assist if load too high. Bluetooth settings and operation.
__________________
Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
jcussen is online now   Reply With Quote
Old 03-22-2020, 10:29 PM   #14
Junior Member
 
Join Date: Jan 2016
Posts: 13
Circuit Breaker

Very easy to take it (current converter) out of the equation, turn off the circuit breaker. Should be a 15 amp breaker if itís the same as my 2020 Northpoint.
__________________

Tuscany3680 is offline   Reply With Quote
Reply

Tags
charger, inverter, solar



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Inverter+Charger or Inverter/charger blevtr RV Systems & Appliances 1 10-17-2019 11:19 AM
Go from Charger to Inverter/Charger? CyrusL RV Systems & Appliances 4 04-12-2019 12:58 PM
Solar controller and inverter/charger cabling for Winnebago ERA Indolent58 Going Green 9 03-23-2016 07:01 AM
"Whole Rig" Solar Power and onboard inverter and charger bjsweeney Going Green 9 02-06-2015 12:51 PM
Dimensions inverter/charger - charger off problem Mr_Bill Winnebago Industries Owner's Forum 2 12-06-2009 01:12 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:10 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×