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I have been looking at this for an existing 650v pack (200s LFP) to find an alternative to the closed source BMS in there. But this gets expensive fast. For a home installation, as this topic started, 48v keeps things safer and much cheaper. If the pack size a bit big, add an active 16s...

Yes I get what you mean. Tiny waves, but highrr frequency. In average though, most boating is pretty smooth. It is about the vibrations, and in the vans on a dirt road probably worse. By looking at the youtube videos with them open, you can see the batteries are strappes in nicely. So I don't...

@HarryN yes legionella is the main reason of concern. But you can even put some more intelligence into these desinfection runs. Not needing them when the boiler was very cold (no growth) or just do this run when you are already relatively high in temperature. All better than my previous house...

-5 or -10C is rare in these days but happens at least once a winter. Typically more like 0 to 10C I have been working with mini-splits which still provide a reasonable COP in those temperatures and typically keep working until -15C. The Hotspot also works until -15C I have read, but I would...

For my RV use, I will put the LFP battery in a cabinet together with jerrycans of water, and that cabinet will be lightly insulated. The light insulation together with the mass of the water should even out any peaks. Of course, with some seperation and waterproofing of battery. But then I also...

For the total picture it is good to think in kWhs consumed and produced to match it out. Right now I know what I am missing in the winter. But yeah, I already know this tiny turbine won't make up for all of that. What it could do, is just make up for my heating on windy days. There will be days...

It is just a smart plug. Even if it would weld shut, it would just become a regular socket agian, the boiler still works on its own with an analog or digital thermostat. I already did a project over here with 10 houses which were connected to a very limited construction grid power, and for...

That depends on the model. In general you can make some assumptions for a complete category. Basically you are looking for a graph which features COP (efficiency) versus temperature. For example, the average (not lowest quality) AC split system that can heat, gets a hard hit in its efficiency...

Yeah I meant inline, not immersion. But the most likely outcome is to use some of these immersion heaters in a small box and run water through there, as a big inline heater.

Ho quick question, I got them slightly compressed now and top balancing them in parallel to 3.6v. After that, I would like to unmount them, turn them around and compress again. But then the pressure would be released while they are at 3.6v. I think that is not a good idea? So either leave them...

I am finding it hard to google this, as you get so many irrelevant hits. This thread is specifically for AC coupling of Solar on the load output of the inverter Yes I prefer DC coupling too, and yes I know there are lots of inverters that let you couple AC solar on the Generator port (such as...

If you buy propane from some place, you still haven't reached energy independence. And in many places it would be more expensive as well.

@Plum Crazy Rob You mean you have the EG4 hybrid which looks like the Deye 48v inverter in terms of specs? How noisy is it on the inside and outside?

To answer my own question, I bought a Renogy 12v to 230v inverter, and induction cooking is working fine. I have used 2 different types of Ikea induction cooking hobs. However, I did go for the 3000W inverter from Renogy to power a 2000W constantly. The 2000W Renogy inverter has trouble doing...

I have almost 200 Winston Thundersky cells of 60Ah , about 9 years old. I think there is still for 80% capacity in them, so at least 30kWh to be used. However, some cells are probably not that healthy and will die quickly. They were never paralleled. What are acceptable internal resistance...

Well, rainwater can be legionella free. If it is not from a green roof or not too many trees and falling leaves etc. Every once in a while legionella pops up in the news, claiming a few victims. It is rare, but you have to take precautions. However for a small boiler at home it is typical used...

Do you have any (semi)official information/specs on these? Weight, dimensions etc From what I understand the modules are 36v? so 10s? Perhaps there are more variants

Yes but is hard to modify a vehicle into a hybrid, though not impossible. It is much easier to just add a 48v system with solar, and then have the 48v feed the 12v, and turn the alternator off. That way you can also save some fuel, of course it is a bit less.

Ah reviving this old topic. For now I have chosen to work with Victron. They can work with any solar inverter, and it really is a mixed bag of inverters. So no use in vendor locked-in solution.

Nice, although I fail to understand how the last one works :) So you're alternating one coil (without core) and it results in the magnet spinning horizontally not vertically? the sphere is divided in half with north/south right?

Nice that you agree with yourself lol

What do you mean by load share at night? I have all the Victron stuff. You can program certain times it is allowed to take from the grid and you can configure it for more self consumption. However, I find that the powerassist function, which it is very capable of, is hard to use in combination...

@Delmar Any idea on prices for these units? The purpose for this topic is indeed an RV and reusing braking energy. In my house I run a big 48v setup, which includes an ac system, and it runs through 230v inverters. Directly at 48v would be nicer, but I doubt if it is worth it if it costs a...

With the "no installation" I was referring to the lower power boilers (up to 2.2kW typically) going on a regular socket, in which case you can use an on/off plug. Which anybody is allowed to do of course. Yes with power diverters and 3.6kW, this is very different. I think you are still allowed...

How does paralleling them work? If one of the batteries has a problem, it takes them all down? Or if not, how does it deal with a battery coming online later again with a different state of charge and voltage? I mean if you build some NMC 10kWh blocks, than a lot of power can be flowing between...

If you dont use a lot of warm water, then the amount of energy is not too bad, but it draws quite some power. Doing that on 48v solves some issues, so you dont run it through an inverter.

For that one at least there is some data Indoor noise is 26db at the lowest. Which isn't very quite compared to 21db of Panasonic/Mitsubishi etc It says very little about heating. It mentions quite a low COP and no working temperatures are mentioned. That is kind of the school of thought for...

@HighCountry2020 Yes. I am in Europe. Very much gas reliant unfortunately. However, putting a gas tank in the garden is not better than using it indirectly. For me I am only short of roughly 1000kWh during the winter. Which I take from the grid. I will not going to take some small generator to...

According to HRTKD it should be okay to loosen them at full charge. I was hoping not to drain them back down again because it will be time consuming. I don't have anything to drain them quickly at 3v.

What do you mean? Do you mean the type of isolators that you manually switch off? Yeah those are nowadays a part of most installations. But I don't see how they would play any rope in this since they are just normally closed/connected is if they aren't there.