1,100 cycles is pretty shy of the 6000 most manufacturers say their cells will allow but no idea what soh is supposed to be at 6000
From the whole survey there's a few with similar scatter patterns but none seem to drop as much as these, many have very low scatter and fairly good soh but the...
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...
So are you getting 1s data samples? I built my own meters with pzem modules and esphome but I don't think I can get the data down below 20s intervals because of the amount of modbus entries on a single bus unless I split all the sensors up onto individual esp32's which might be still cheaper...
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.
WT32-ETH01 would be the cheapest there's lots of companies producing those Ali should have a wide range most fitted with a wroom chip but those are just ethernet.
Poe versions are fairly expensive I use a few lilygo T-internet-POE boards which are well made and only around $15 here but that's...
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...
Sdr17 is what they typically use here but as you said that's worthless for anything other than ground laid irrigation but sadly education is lacking here especially within trades hence why I end up doing everything myself or training lads on the job to work to better standards.
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...
While it was messed up it was grid+solar now it's just solar only.
I was trying to turn off the display backlight to video the PV input and load on the device incase I had to warranty with Powmr and noticed all the settings were messed up. I've set notifications on my phone now if any settings...
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...
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.
You should know better than this even two conductors the same size won't become one, temperature coefficient plays a large role and as this is in a battery box you should expect both conductors to carry 166% of a single conductor even two conductors spread 30cm apart should be thought of as...
I highly doubt that most battery boxes being sold are anything other than mild steel.
Edit: also thanks for the melting point list I got °c and °f mixed up for stainless seems it's not as good as I first thought
That's why your not supposed to mix them mc4 is just a term we use to describe the connector for ease in reality each manufacturer has its own name if they don't, they break Stabuli's trademark.
It's a crapshoot brought on by stabuli really, that's why boron is so adamant on calling all other...
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...
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
First reported case was in Thailand I caught it literally a few days after when doing a visa trip to loas (the sandwich country between Thailand and China) before the boarders closed.
My sister in law is a doctor here and another sister is the head pharmacist for the nearest main hospital so...
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...
It took me 4 hours to water my garden during the dry period via hose pipe managed to cut it down to 2 hours with simple sprinklers and taps but I still had to check to see if the ground actually needed the water and when to add fertilizer etc now it's automatic and I can check the system 9000km...
Same B&Q site you shared
Personally I would have cut the closed cell as close as possible then filled any gaps and stuck it with a can of low expanding pu foam
Shop around and do your research the polyester insulation seems to be extremely expensive compared to rockwool, don't let the very...
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...