But what specifically are you paying so much more for? I mean I appreciate the recommendation and since you are pushing pretty hard, I have to ask. (not trying to be an ass)
Easier integration sounds good to me. If the stuff doesn't work, then it's all pointless. What else? Better CCA assembly? Internal assembly? Better, more reliable components? Higher rated components?
Battleborn is recommended by the builder, but they will use what I choose.
I don't mind paying more for a better product but what batteries are as good or better?
The key is I have not decided on anything yet, but I was looking at the MPPT charge controller. I know what you like, but again tell me why. You avoid Renogy, I get that, but why? Is it garbage?
--Edit-- I'm posting from a campground with a crap internet connection and I think my pics aren't attaching properly, but I think they are there.
Total Integration mainly. Take a look at my solar thread, everything is tied together and works as one. Initially I didn't intend to go as far as I did, it really just happened over a period of a few months,
I've owned Renogy stuff,I had no problems with it and if you just need a piece or two, it works perfectly fine.
One of the huge selling points for the Multiplus II is the ability to assist the current from shore power. I can plug into a 15 amp wall outlet and run my whole trailer AC, electric water heater, everything, with assist from the batteries Granted, you can't run all of that 24/7, but for loads that cycle it is a dream. You pull the batteries down while the inverter is assisting the wall current, and you charge them back up when the load drops off. It is seamless. (I realize it isn't unique to Victron, but other inverters that do it are more costly and not as feature packed (Xantrex))
I can also restrict current to anything down to 9.5 amps on the power input, meaning no more burned up 30a TT plugs when the campground has a dodgy connection.
Traveling at the moment and don't have access to my pics, but here's one I could dig up. This is the input to the trailer hooked up to a normal drop cord with the current limited to 9.5 amps. The AC in the trailer is running, pulling way over the current that the cord can supply, the rest is being made up by the batteries. Actually, most of the assist power is coming from the PV array, but it works the same if you have no solar, just pulls it all from the batteries.
As for batteries, Battleborn is great, but way out of my price range and I don't think you get what you pay for. The LifePO4 market is brutal and costs have come way down and there is some truly decent stuff coming here.
Will Prowse does some decent battery teardowns of LifePO4 stuff, worth a look.
https://www.youtube.com/@WillProwse
Anyone can view my Victron data if they choose. Have a look, it is good fun poking around. They include this when you're using one of their control modules (Cerbo GX-S in my case)
https://vrm.victronenergy.com/installation/488934/share/26ec45af
(I didn't pony up for the official $250 Victron control panel, this is a $49 amazon touch screen and a 3d printed case.
As for system integration, here's a shot from my control panel, I can view almost every part of the system and make changes through the control panel. This is just one of my solar strings (at night).
They've since changed the UI to something a little more modern.
My solar thread on the sister site:
https://rvthe.us/community/threads/26djse-solar-upgrade.896/
I didn't intend to go as far off the rails as I did, it just sorta happened once I started researching on how to set up my system. A natural progression and a 'do it right the first time and not mess with it again' type thing.