diy solar

diy solar

Search results

  1. A

    18650 Battery Store

    How do I contact you privately?
  2. A

    18650 Battery Store

    The document they sent me is what EVE has published for their Overall Standard on the cell type. According to the 18650 Battery Store website, they state if you request the test data they will send it out. I did this but received the other document I just described. GB/T 36276-2018 (National...
  3. A

    18650 Battery Store

    They sent the overall data sheet on cells to me but no individual test data. I think the left hand doesnt know what the right hand is doing over at the 18650 Battery Store. Nothing nefarious, just someone inexperienced or careless working there. I will report back on the quality of the cells...
  4. A

    18650 Battery Store

    I ordered 18 LF280K cells from 18650 on April 5th, 2024, paid in full ($1,889.32) incl. shipping. I've heard from them twice via email. Once to provide a data sheet for the cells and a second to respond why my cells have not shipped. I was told that they would look into this and prioritize the...
  5. A

    National Standard of the People's Republic of China (English version)

    CODE of China Everyone might find this interesting. The site contains the Standards of how the Chinese Gov. and Manufacturers view Lithium cells including their sub class ratings and how they are coded via QR codes. There is a ton information, much of it you have to pay for (sadly $810.00...
  6. A

    Eclipse 2024

    Some observations on wildlife. I live in a forest with a wetland nearby. Just before totality, frogs in the wetland started to croak. Bats from tge forest began to fly and a Barred owl hooted. My chickens hid under solar panels until my family came out and they stood next to us. No wind, deathly...
  7. A

    Eclipse 2024

    This was very near to totality, behind clouds.
  8. A

    Eclipse 2024

    Was'nt sure if most people on here would understand "North Country" term though.
  9. A

    Eclipse 2024

    30 miles from the Canadian boarder, Upstate NY. Right now
  10. A

    Eclipse 2024

    I'm in Upstate NY. In the path of totality. Not worried about my PV harvesting and I live fully off grid in a family of five.
  11. A

    Eclipse 2024

    Lol.
  12. A

    JK BT 8S-20S 120A 0.6A CAN communication with EG4 3000EHV 48

    Is there anyone who has successfully connected a JK BT 8S-20S 120A 0.6A CAN BMS to an EG4 3000EHV 48 scc/inverter out there? If so, could you please educate me on how you did this?
  13. A

    New LF105 cells seem to have a sudden drop in capacity, bad cells? Something else?

    100% with Chris30559. DO NOT connect JK Bms test leads to the bus bars, you WILL get wacky readings. I had the same problem as Chris and once I connected the test leads of the BMS directly to the terminal screws all my "bad" and "great" cells went away. My active balance could keep up and...
  14. A

    A123 3.2V 50AH LiFePO4 Pouch Battery Cell

    Does anyone know where to buy these in the United States? Could use the help. Looking for: A123 3.2V 50AH LiFePO4 Pouch Battery Cell
  15. A

    Need help on Pouch cells to recover battery and its overall bank.

    Yes. I did this exactly. The two cells are held in place by a square plastic frame. The frame has two pairs of brass screw insets at the top to which the cell packs are held in place by their respective + & - tabs. These tabs rest atop of each other and have holes to allow screws to pass. The...
  16. A

    Need help on Pouch cells to recover battery and its overall bank.

    Awesome guys! Thanks for the help. I couldn't identify it or find the maker. Thank you very much. As for the battery, it was a special deal I had with CHINS and didnt have a warranty with it. No big deal. I wanted to learn, so I opened it.
  17. A

    Need help on Pouch cells to recover battery and its overall bank.

    Hello community, I have a CHINS battery (12.8V 100AH) with LiFePo4 cells. The battery pack contains four pararelled pairs strung in series to create the overall battery specs. The first pair of pouches seem to be not holding a charge. I have moved the pack about the bank with no improvement. I...
  18. A

    [SOLD]: EG4-3000ehv-48, NEW, NEVER OPENED

    *Bump* This unit had been bought. I bought it- receiving the unit 3/13/2024
  19. A

    EG4 3000 EHV-48 Configuration Learning Curves

    Can anyone tell me wjat setting #46 does on the EG4 3000EHV 48?
  20. A

    AMPINVT 6000w 48v SPLIT PHASE INVERTER

    At the time of my original post I was looking at the 6000W 48V AMPINVT and the EG4 3000EHV 48V. Due to the lack of shared "field" experience on 6000W 48V AMPINVT I went with the EG4 unit. Since my original post I have purchased two of the 3000EHV units and continue to purchase the EG4 5.12 Kwh...
  21. A

    [SOLD]: EG4-3000ehv-48, NEW, NEVER OPENED

    If this is still available I am interested in this immediately. Zip code 13642
  22. A

    Why two positive and two negative terminals on a server rack battery?

    Update: I was able to figure it out. JK BMS is damn slick!
  23. A

    Why two positive and two negative terminals on a server rack battery?

    So...I have taken apart (4) four12.8v 100Amp batteries (removed shells, and old bms's). Turns out the batteries are pouch cells. Purpose? I have removed the individual cheap bms's to consolidate them to a single 48v BMS. Question #1: why do these pouch cells have two (+) Postive screws and two...
  24. A

    EG4 3kW 3000EHV-48 vs. MPPT100-48HV for charging

    I am wondering the same thing. The only difference I can see is that 100amp version is 20amps greater than the EG4 3000EHV 48 (80 amp version). Having written the above, I cant understand why the 100amp version is near $300 less than the 80amp version. I assume I am missing something technical...
  25. A

    EG4 3000 EHV 48 Solar Harvesting

    Thanks for the reply. The information on the EG4 3000 matching the Victron CC is encouraging to hear. South Florida? Must be nice having all that sun down there. I'm in upstate NY and this years winter has been bleak. Usually we have some decent sun when the weather drops and stays cold but this...
  26. A

    EG4 3000EHV 48

    thank you.
  27. A

    EG4 3000EHV 48

    Did you build the box yourself or buy it? if you built it, do you mind posting a pic of it. it may be something I need to replicate.
  28. A

    EG4 3000EHV 48

    thanks for the reply. i just tried connecting a parallel set of the above panels and the EG4 mppt wont start charging...any thoughts? How are you combining your strings?
  29. A

    EG4 3000EHV 48

    How many 100w can you wire in series and connect to an EG4 3000EHV 48? Currently I have 10 100w panels @ 5.15A Imp/19.25 Vdc. I'm in the low 200's with the current configuration and I am wondering if anyone has a system with more than ten (10) panels wired in series without any parallel connections.
  30. A

    Raspberry Pi 4B as monitoring unit for EG4 3000 EHV 48

    Awesome! Thanks for the confirmation and link.
  31. A

    Raspberry Pi 4B as monitoring unit for EG4 3000 EHV 48

    Q1. Can I connect a Raspberry Pi 4B to the EG4 3000EHV 48 through the RS232 port? I am looking to add the device as a "quick glance" monitoring unit. According to the folks over at Solar Assistant, they have the software setups for the EG4 EX/EHV units. If anyone is running one of these devices...
  32. A

    EG4 3000 EHV 48 Solar Harvesting

    Thank you for your response. By numerical values I have configured the solar array to work out to 425 VOC. On the VMP end of things I was wondering what others are harvesting under wintery days. I live in up state ny and our winter days are absolute crap unless the temperature falls into the...
  33. A

    EG4 3000 EHV 48 Solar Harvesting

    Hello All, I am looking for someone to share their experience on solar harvesting with an EG4 3000 EHV 48 during a cloudy/wintery day. Should you have close to the 500 VOC, what kind of panels are connected and what have you seen your device collect on any given wintery day?
  34. A

    AMPINVT 6000w 48v SPLIT PHASE INVERTER

    So by everyones silence, I guess my skeptism of the AMPINVT 6000w 48v inverters remains.
  35. A

    AMPINVT 6000w 48v SPLIT PHASE INVERTER

    Are the 6000w 48v AMPINVT inverters reliable? Anyone using one or two with modern electric stove top with red glowing burners under tempered glass? I am looking to go all electric (off grid) without the use of cooking with a cast iron stove. I use wood/coal multi-fuel cast iron stove for heating...
Back
Top