diy solar

diy solar

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  • Post in thread: Weird bus bar idea

    Why don’t you use infinite parallel pack as I do. I can add any number of new 16s packs I want at any time without any stop of the working system. What do you think?
  • Post in thread: At this point... if you are buying From Alibaba/Aliexpress you deserve what you get.

    that store is a scam store that will never deliver your order, below is just a small list of stores that will never send any package and you might not get your money too easy from dispute so you might loose the money : https://www.aliexpress.com/store/912331261 258 sales volume Store...
  • Post in thread: About to order $10k worth of LiFePo4 3.2v 302/310ah cells need to pick your brain here

    If the title of the battery states “GRADE A” why would anyone allow and tolerate to receive anything else ? Getting swollen batteries with rusted connections is something that we are not able to tolerate!
  • Post in thread: Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    Please be careful also about all seller reviews. Not sure if you noticed but the hacker also ads fake comments on the store and this method is used by many stores to boost their trust with fake positive reviews even more than their store number of orders and PWOD , OYE, Sanben or Litokala does...
  • Post in thread: NEWBIE here! Please help!

    Yes, seller is creating a false ultra fast track for the package that also testify package was delivered and AliExpress will not refund you the money. There are hundreds of FAKE stores and you will never get the product and also you will not get the money on refund because AliExpress will show...
  • Post in thread: Purchasing 32- Eve 304 ah cells or 32- CATL 302 ah cells which one is best advice needed

    I was not able to find any data sheet about a battery with more than 302ah. let me know if anyone can find the exact producer and data sheet for 310ah or 320ah you can find on AliExpress. but it is fake capacity of 320ah : And note that all cells that have small QR code on the side have...
  • Post in thread: Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    The list is so long at this moment so that is pointelss to even add, now the hacker started to : 1) add fake 5 star reviews that was copied from other legit stores and the only way i figured was that an entire page had the same hour and minute and that is impossible 2) now they use also ZERO...
  • Post in thread: Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    Haha, this scam from AliExpress has word wide effect against 17track.net that is used by scammer and who does noting to resolve the problem with the shipping comany being used by hackers . I've now seen 1 star average reviews given to 17track here : https://www.facebook.com/17track/reviews (320...
  • Post in thread: AliExpress fake seller stores “xxxxOrders Store”

    updated list of fake stores that will never ship anything and pretend you received the package and you have problems on disputes and growing each day with more than we can count : https://www.aliexpress.com/store/912331261 258 sales volume Store https://www.aliexpress.com/store/912152020...
  • Post in thread: Internal Resistance 280ah cells important questions

    It was checked at 28C , it is hot summer now in EU, after 24 hours rest. also device was calibrated and really carefully checked the contact code hen checked and did 5 checks for a cell to be sure , and lowest was considered . So what I want is a graph with linear IR values …. For example if...
  • Post in thread: 310 ah LifePO4 from Aliexpress take 1

    After 115 days since payment !!!! i paid and received from PWOD the same type of batteries but 144 pcs in EU, but all are so bumped that I can’t even put the bus bars ! The connectors look the same old as they are for me ? That is not a new battery that is so good for rusted. Also check the...
  • Post in thread: AliExpress fake 420ah cells

    Can you read the label on each cell ? It is the weight and dimensions of 280ah cell.
  • Post in thread: Connecting 20 wind turbines in series ?!

    I already have filled the available roof space with solar and indeed solar is the best option because it produces a lot of energy in one year but wind is complementary because when there is a cloudy week usually there is wind day and night and wind will compensate the lack of sun for weeks...
  • Post in thread: Connecting 20 wind turbines in series ?!

    Yes, it must be between 10A to 20A input and boost from 50V to minimum 120V and more is better, but they must sustain constant voltage of 40V - 60V to power the wind co troller ( I have seen that controller seems to power on quickly but not sure if thousands of power cycles if it is not...
  • Post in thread: Infinite parallel 16sXp good or bad ?

    Active balance with capacitors have less than 3% energy loss compared to 100% energy loss from passive equalizer with resistors. I have 5A equalizer that is not heating at all.
  • Post in thread: How to tell the difference between Grade A and Grade B cells.

    it seems to be a common practice of scrapping all original QR codes ... and adding small new painted ones in the corner. I received also from CATL old cells that are rusted and being sold as brand new GRADE A cells by PWOD AliExpress Store :
  • Post in thread: AliExpress 320ah that cost $22 per cell with shipping ?

    CC contacted, but 3 months they said it takes to resolve the dispute with the other bank, and there is no warranty it will be favorable . it seems that there are more than 100 of this type of fake stores, all with the same products created by a bot and all are using the same FAKE delivery...
  • Post in thread: At this point... if you are buying From Alibaba/Aliexpress you deserve what you get.

    it seems that the number of stores that will steal your money and after that you have to provide proof you did not actually get the package is over 100 stores and i counted that 10000 people was robbed by them already, if you do a simple search all are fraudulent stores with identical full list...
  • Post in thread: Monitor JK BMS with Solar Assistant?

    I would like to sincerely tank you for sharing the functionality freely and not asking money for it. We all want to make it work with easun inverters. I will try it and I recommend the creator of Solar Assistant to add support it as a priority because it is a very good 2A active equalizer bms...
  • Post in thread: How to tell the difference between Grade A and Grade B cells.

    it seems that the fraud here went over the roof with this site and Interpol police has to do its job there : https://diysolarforum.com/threads/at-this-point-if-you-are-buying-from-alibaba-aliexpress-you-deserve-what-you-get.27437/post-342103
  • Post in thread: Solar Assistant Wish list, Bugs and Issues.

    1) I would add support for EaSun Inverters with cable at least . I have this model and it is not working to connect USB cable. The Inverter has WIFI dongle and works with wifi on all apps like SmartESS or WatchPower and I want to be able to use the same Wifi network as all the other 6 or 9...
  • Post in thread: PWOD refuse to replace 144 pcs damaged 310ah batteries worth of $20000

    Yes, I will. Swollen battery was received by 122 European orders that was shipped at the same time with the same container that appears in tracking so you know the size of the problem stored to so many people. Feedback like this is really helpful for anyone else that want to take a decision and...
  • Post in thread: Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    Yes, I explained above, only way to solve this is by doing something each one of us, together we will succeed : " Can anyone contact company www 17post56.com AND www hjyt56.com that are the ones that are being used for this scam on their contact telephone or WeChat app and explain them the...
  • Post in thread: Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    I think that under 1% of the scammed persons know about this thread, and 900 already wrote about their problem to trustpilot reviews https://www.trustpilot.com/review/www.17track.net or their Facebook page https://www.facebook.com/17track/reviews but guess what, even them did nothing to correct...
  • Post in thread: Monitor JK BMS with Solar Assistant?

    Yes, it would be very useful if he would ask for your support because you are very skilled and can help all of us benefit from the help you will provide. Is it complicated to ass this feature to completly eliminate all cables and serial converters ? 3) I would want Bluetooth connection to JK...
  • Post in thread: Weird bus bar idea

    You can see that each 16S is on 2 row and paralel is between each every 2 cells , please open the image and see the connections of batteries and also on the end are the inverters. Also for better balancing inverters will be moved at series ends. The setup is for long therm storage and laod is...
  • Post in thread: Weird bus bar idea

    The is no heat. You can see that each 16S is on 2 rows and parallel is between each every 2 cells , please open the image and see the connections of batteries and also on the end are the inverters. Also for better balancing inverters will be moved at series ends, now they remained from first 2...
  • Post in thread: Weird bus bar idea

    If they don’t lie flat they must heat but at 200 amps they do not heat at all. So where is the problem ?
  • Post in thread: CATL 271Ah 'Grade A' prismatic cells from Shenzhen Basen - Cell terminals without threading

    So we have : battery terminals are from aluminum , over them we have laser welded STEEL stub with the nut from steel and we connect zinc covered copper bus bars . The possible poor connection I have seen is between bus bar and very small size of the stub from the battery that is 1mm wide . can...
  • Post in thread: About to order $10k worth of LiFePo4 3.2v 302/310ah cells need to pick your brain here

    Yes , in pictures from PWOD was the same for me but I received 32 batteries without any QR at all (just scratched) and 112 batteries with fake painted QR code in the corner . Ask them to agree the terms of shipping only grade A. They all send this bad quality because disputes states to return...
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