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Yep lithium cells are generally always stored at 40-50%,when buying anything with a lithium cell (phones, toys, laptops, solar batteries) you should notice they are delivered at around 50%charge this is generally considered to be the stable point of lithium chemistry and the least stressful soc.

Sorry I forgot to look last night but just had a check now and our Toshiba AC unit on 100% is drawing 430w and at 50% it's 370w doesn't seem like a massive saving but maybe the Della system has a larger difference.

The regs this post is quoting kinda laughable to me as an retired British electrician we simply had to drive as many rods as was necessary to get a good ohms reading So the exception is dangerous I've had to fit 5 rods on my home here to get an acceptable reading of 5ohms and I likely need more...

Winston produce 1000ah cells though I've only seen 500amp bms's, though I'm sure 1000amp are available. Price and fit for purpose normally are the factors here No not for lithium, you need to order the cells to the voltage then have a single BMS that covers that voltage/amperage. NB you can...

Ignore the SSC it's irrelevant for this thread these are sprinkler systems extremely cheap self sufficient sprinkler systems

Meh smarty pants but tbh I'm not so sure I might be even correct on that the voltage drop some days at peak times was getting very close to cut-off point for my inverters ups mode.

Are the batteries balanced? How are the banks connected in parallel to the inverter?

Even considering that it's illegal there I think that guy is smoking too much devils lettuce even if the panels are that price who's buying them? Like I said type in "solar cell" into lazada, longi/era cells should be around the 5000 mark for 400w if your ok with other brands nakita/ja/Trina are...

Is white neutral and black live in California?

So don't pay for the 20 year extended warranty on my Solis inverter your saying?

Sorry the address might have been relevant information in my first reply, Its 0x05 the inverter is 2wire so RTU I didn't write the code I'm using so I'm unsure if it uses ASCII but if I remember correctly from debugging I think I saw 8 digit binary stings but I'm not 100% on that.

Not really going to prevent galvanic corrosion the air is already in the fitting and the mixture of metals is what's causing it you need to expel any air around the crimp to prevent it, if using heat shrink around the crimp there's a good chance it wouldn't fit into the body then.

Sorry not familiar with renogy panels when he stated they were 12v I thought 12v, now looking at the spec sheet is can see they are 20v

Hope no one is waiting on parcels to ship from Vietnam, pretty much every factory has shut there since the news of the US tariffs.

I have ir blasters for all our mini splits but they are pretty useless on their own, I'm in the process of fitting clamp meters to all the house circuits including individual hvac circuits so I can check power usage and determine state I'll post something in the interesting projects thread once...

I doubt very much that it's metal more likely it's gypsum board that's being used to hide metal or poorly finished concrete and I doubt the home owner would want you to go cutting big holes from it. Sorry no idea what else to suggest, sadly Asian ignorance of safety is widespread the likelihood...

The shelly pm series is a clamp meter and I believe relay so you can monitor and control the load.

Oh it is.....

Because if I want to prevent galvanic corrosion between mating surfaces dielectric would be a sure fire way to cause a hot mess it's fine for preventing corrosion around terminals but if you want to mate a tinned lug to a copper busbar or any type of current carrying surface you need it to be...

Is it that bad for the US? most things are at least double the price. Panel specifications are irrelevant here in asia theres no point in buying anything but the newest technology(likely they just look at raw materials cost rather than specs) a 600w bifacial works out at about $0.13 per watt...

Thanks that's a simple explanation I'll remember

Thanks I was starting to freak out some.

With large SQL databases? Just type "usb hard drive corrupted on pi" into Google you will find out that your case is rare and usb powered hard drives crapping out is the norm.

Not by the looks of it I'm afraid I can't see any battery test function on either of these pictures so doing a simple DC voltage measurement means nothing a battery tester tests voltage under load (has a resistor to induce a load across terminals) a simple multimeter cannot do this.

Good luck to the EU and US the rest of the world will continue to use Chinese PV goods just they won't have to run factories in other countries though not sure how tariffs will affect the Chinese companies making panels in Mexico.

No I'm out of country atm but hopefully heading back today but working out the lambda write isn't high on my priorities for now sorry. It's working out the hex code and how to implement it on initial boot up in my case as it seems this would likely be the most reliable way to get results.

Mines always in sub I think it's worth experimenting anyway even if the data has already been proven.

So i set up my small array to handle essentials, I only went with two 380w panels mainly for the voltage as this was a greater PV power production than I actually needed. Now there's talk in the house of a larger system to power everything but grid tie is more trouble than it's worth here so...

As I go deeper down the rabbit hole and now looking at the future and my next project I starting to be torn between FLA and Lifepo4, I was thinking FLA and Purley battery backup. Silly thing is here in Asia it's actually far cheaper to go down the Lifepo4 route but the hurdle being temps...

Sorry I thought it was 7% so I shouldn't be worried at all and it's actually charging at a reasonable rate?

Im not sure I got in the notion it was going to be placed in the office though it's hot and humid so my brains melting ATM Im on my phone I just select numbers and symbols and hold down the number 2 I can do Ω also by holding down π

API grabs are never that good or secure, personally I'd go with a hacked modbus like Deye.

Not that expensive whatever the option of cooling is tbh. I'm looking at $83 a kWh for Lifepo4 or $125 a kwh for FLA still haven't worked out my total usage (currently at around 20kwh for a whole day but it's not that hot) and how much I need to oversize the battery(any suggestions or just go...

Just to clarify the nominal voltage on the battery is incorrect it should read 576v volts and the dimensions seem completely irrelevant I'd recheck with the supplier and get them to verify exactly what battery your getting. Only other thing is the price of the inverter seems very cheap I'd...

You could just manually run the automation or as suggested above make an template entity to use temporary instead of soc.

He shops on Lazada it's full of sinopy, CATL, CALB cells and Daly bms's. 12v 100ah would be about $120 then a 40amp 100voc epever is about $65

What's the battery SOC/voltage currently? Do you have any loads on the system? Not trying to discount you may indeed have a problem but this might be normal behaviour for the mppt depending on these factors. If your battery is at full charge the epever might just be in float and only topping...

So I've found a very local supplier of panels (literally 15 minutes down the road is the 5th largest supplier in Thailand) they have 450w bifacial branded Infosat (well known satellite TV box brand in Thailand) but from research they seem to be rebranded and manufactured by Powitt. My googling...

Is it typical that some stockists can offer Deye inverters at half the price of Alibaba in the EU should have been my question

Seems so after what Will said I took another look and in new prismatic cells they use a jelly roll(ovoid) shape so the plates are continuous but surely there's other manufacturers who use the old method same as Winston and people aren't necessarily checking about orientation, or even people...

Think HA has local voice assist now.

This is about the same price and offers more sockets. The screwdrivers are great as they are interchangable with the torque screwdriver and the blades are reasonably priced when you wear them out. Also the insulation doesn't protrude so they fit into tight terminals.

Does hedges listen to any of us is the question.... 600 posts, 3000 posts were all slacking as far as he's concerned

DTLC crimps are likely your best bet

I bought a 1.6kw Powmr off-grid AiO for this reason cost about $150 for the AiO and grabbed two 380w panels for the heck of it now not only does my server Rack have a far bigger offline capacity but it runs for free during the day.

Sorry didn't see that but my point still stands op hasn't come back to explain his choices or ask any further questions. I've not agreed with tim before but rather than keep arguing on a public forum with a person I don't know, I've chosen to not get into some heated debate in a thread with...

Yikes that's 12 years of no electricity bills for a payback All the aluminium case batteries have pretty newly applied shrink wrap so no idea of the mechanical damage although they would be more thermally conductive for my intended use, but is it really worth the risk? I priced up 64 sinopoly...

Shading is an issue as I'm not that familiar with optimizers and haven't even seen them sold here it's the main reason I've looked at the center of the paddy fields as it's the most barren spot of the land. Alot of my irrigation solar panels got taken over by trees, just everything grows too...

I might be wrong but I don't think you can DIY Tesla powerwall/inverters you need to add an approved contractor uid when commissioning using the Tesla app atleast that's the case with powerwalls I've seen installed.

Dielectric grease is silicone and silica both of which are insulators don't really know what else there is to say.