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I'm trying to put together a list of what is a available for DC air conditioners. I think there are a few more options in the trucking industry, that we might be missing. I would love to get feedback on any of these options. I know there was a thread where someone popped in to say they were...

I think he explains that the unit is on loan in the first video. It helps a bit with the context. He also mentions some of the features like AC coupling. I watched the second video too, and I didn't think it made the Sol-Ark look bad. It just seemed like he needed more from one leg than it...

Anyone want to complain that the screw isn't sufficient for ng bond in the international version?

Oh, and balancing loads isn't an easy task. Especially if it's all 120v loads in the same room. Did you expect him to rewire his house to get a piece of equipment, on loan, to work correctly? Honestly, if you were talking to an installer they would recommend a bigger better unit before having...

Eh, most of us get some parts wrong no matter what. I've learned that about myself over the years. I find it's best to learn the flat part of the curve and then start trying stuff. Most of the advice on forums is biased and not always exactly true anyways. You don't really know your situation...

There aren't any 420ah blue prismatics, and that specific gravity would be top tier. What did you expect? Some store called shop12345 is going to sell you a state of the art unique battery for cheaper than the current best prices? At least you got something usable. I can't get the scene from...

I have an order with Yinlong on Alibaba. I'll let you guys know how it goes. It's not cheap compared to lfp, but the temp and c ratings are crazy. BTW I got like 4 different versions of the spec sheet with different pulse/10 second ratings for the 66160h 40ah cells. Anywhere from 400 to 800...

I must have missed something, but have you considered LTO cells? 800amps is easy with a small set up. I have a 2p6s with 40ah yinlong cells I'm using as a starter pack.

As an update, I was able to top balance and add my second set of 4 cells. I'm able to charge up to 14.1 volts or so without a single cell tripping the high voltage alarm. Interesting enough, I think re torquing the connections and sanding the Bus bars helped as much as anything. At a high...

The math is easy, but getting accurate numbers to start with is difficult. Especially on AliExpress. For series: 4x12v=48v So, 4x200ah 12v = 48v 200ah With 8 200ah 12v batteries you can build 2 of those, or create a 2p4s configuration. Depending on the limitations of the batteries. That will...

I connected the charger directly to the battery and it showed current. Then i moved it to the p- on the bms and it didn't wake it up until I upped the voltage.

I wanted to give a 5 or 6? Month update. I have been running without a balancer in place and hit around 40mv difference between cells. Since I'm not going above 14.5v that's probably somewhat substantial? Anyway, I haven't had any issues, so I plugged in the balancers and we are back on...

I bought some of these, and it was an easy transaction. I did ddp, and Nickie? Helped me out. Provided videos and the individual foam packing. Shipping was quick for the slow boat. It does look like I receive two different generation cells, as they have different serial numbers. But I'm not...

I got my batteries in and started on the starter battery. This will be 2p6s with two active balancers. Some sort of Teflon hatch seal between cells, mgchem847 on the aluminum, and blue loctight on the nuts. I'll probably be able to test tomorrow.

So a couple of choices were questionable, but seriously what do you consider out and out dangerous? @HighTechLab

I'm interested in understanding what happened to the old pack. We don't have a lot of "old packs" for solar lfp yet. 50% is substantial degradation. Maybe a new thread?

Not all, but a lot of these problems exist with other inverters as well. I haven't seen a discussion around grounding where everyone agrees on much. I think there is too much reliance on regulations without understanding the fundamentals. Regulations aren't physics, sometimes they aren't...

https://www.homedepot.com/p/Midea-8-000-BTU-U-Shaped-Inverter-Window-Air-Conditioner-WiFi-9X-Quieter-Over-35-Energy-Savings-ENERGY-STAR-MOST-EFFICIENT-MAW08V1QWT/315241074 Lowest price I have seen by a margin. I have heard good things. Just FYI

Does someone have his family hostage? Boy was he careful.

I think I'm good with what I have for now. I can always add a chlorine tablet or something. I only have 14 gallons. There really isn't enough for an RO system. Thanks for the information though. I really had no idea there were so many options.

The lvx-6048 is low frequency and according to watt247 includes an auto transformer. I didn't see any real details about the lv-6048 though, it still looks like two MPPs in a trench coat to me. Thanks for the input FilterGuy. I really appreciate your effort towards documentation and sharing...

@Substrate You were talking about "back in the old days" somewhere. How many years/cycles did you guys end up getting? What was the average, even with the poor charging choices? Anyone still have banks running at 80%-90% capacity after > 5 years?

The Yinlong 40ah cells are pretty big, you might want to make sure there will actually be extra space. I drove down to CA to see the redwoods, at least 1300 miles over 4 days. No issues with the new battery. I'm going to let it drain and check the capacity and balance. 14v average, no issues...

Thank you! I'll dial it down and try to get the pack v higher when I get a chance. If I'm below 4v per cell is there any reason AI cant just let the bms keep cutting off as a specific cell hits 3.65v? Would that actually do anything?

I'm hoping I'm not just continuing the pile on fhorst, but this is quite concerning and I assume we all want to ease our minds so we have faith in our systems. @fhorst I recall a thread some time back about "inductive" charge on the all thread used for compression. Was this you as well? I...

btw, at 301ah you are around -3%. If you don't know your tools and testing procedure well, that could be all within the error of your environment. I would be surprised if you get much from the supplier. Use high quality wires and connectors to limit losses in other places, and feel confident...

If that's the case, then it wouldn't matter which leg the toaster was on. So there was no balancing that could have saved him. Either way, no one wants to run a system they have to micro manage. Especially when they have two others that worked for them.

I would try something like the Growatt SPF 3000tl lvm-es with 4x410w panels. That should run a 800w load most of the day and can pull from the grid when it doesn't have enough juice. You can always add a battery later on.