Search results

  1. L

    Lishen 270ah-272ah cell group buy.

    Second 16s pack with the 150’s tested out at 154ah too, now to do a full charge/discharge cycle to make sure the BMS is all set right.
  2. L

    Lishen 270ah-272ah cell group buy.

    Just finished doing first capacity test on a 16s pack with the 150ah cells. Came in at 161.089ah before the BMS cutoff for cell low voltage (2.50v), pack voltage at that point was 44.9v Can see by the attached BMS screenshot that the cell voltages have risen a bit and are a bit out of balance...
  3. L

    Lishen 270ah-272ah cell group buy.

    Got home today and the final box was just sitting there (in the rain :ROFLMAO: )! Still no tracking updates on its number, but it showed up so thats a win! Now to wait 30 days for them both to balance!
  4. L

    Lishen 270ah-272ah cell group buy.

    Oh man! I’m at 3.40 (up from 3.39 yesterday), about 2kwh into the pack. At this rate it will be a week or two until full! Then I want to capacity test and charge again…see you in October!
  5. L

    Lishen 270ah-272ah cell group buy.

    Same, and I actually thought it was one of his videos I saw the concept of splitting the terminals when balancing, but then couldn't find it anywhere :ROFLMAO: Also watched a couple others and didn't see. I did see some using multiple power supplies, one at each end. It makes sense though to...
  6. L

    Lishen 270ah-272ah cell group buy.

    Yeah I was thinking about that, but didn’t see any examples, even in one of wills top balance videos they were both on one cell. Makes sense though, will move to the opposite corner
  7. L

    Lishen 270ah-272ah cell group buy.

    🙈 that sucks!
  8. L

    Lishen 270ah-272ah cell group buy.

    I did start to top balance one of the 16s packs, that will take a while so have a little breathing room! I may have to break into 12v packs and charge up first though! Looks like they will take a while. The overall quality is good, no major dents or blemishes, all tested at 3.29 +/- 0.002, one...
  9. L

    Lishen 270ah-272ah cell group buy.

    Good to hear I’m not the only one 🤣 maybe it’s a “process” thing! All 6 of my original tracking numbers are from “FBM”, then I got new entries (same numbers) for 5 from “LIONEXT INC” which have been delivered. So either the 6th parcel wasn’t picked up by the forwarder here in Santa Fe Springs...
  10. L

    Lishen 270ah-272ah cell group buy.

    quick update from me, I totally spaced on my battery order so hadn’t been checking in, came home Sunday to find a bunch of yellow boxes on my porch! 5 of the 6 boxes for my order have arrived, but there is no movement on the last box. I got new tracking notifications for 5 of 6 which now show...
  11. L

    Group Buy - Bus Bars

    I thought that may be the case, I don’t physically have them either yet, they are on the mythical boat from China 😂 Once they arrive I will get some accurate measurements for you.
  12. L

    Group Buy - Bus Bars

    Hey @Lt.Dan , Any chance you can add an option for the Lishen 150Ah cells? They pretty much half the thickness of the 280Ah units, so the edge to edge bars will still fit, just the side to side ones wont. Datasheet for them attached, if you can I will order enough for 2 (maybe 4) 16s packs...
  13. L

    Feedback on Off Grid Cabin setup

    Anyone have any thoughts on the bifacial panels? They worth it or more of a gimmick? We will get a fair bit of snow so solar reflection in those months may help
  14. L

    Feedback on Off Grid Cabin setup

    Ah k, I did see in the manual the warning about not pulling the fuse when under load as it will go boom 😅
  15. L

    Feedback on Off Grid Cabin setup

    Makes sense you want to protect the underground wiring too, that would be an expensive replacement! I think that combiner has a. knockout on both sides, so makes sense that's there the arrester would go. I was going to do breakers, but they only have 150 and 300vdc versions and say you need to...
  16. L

    Feedback on Off Grid Cabin setup

    I think you do need the combox to get the monitoring, it looks like the attached image, can see flow direction and energy going between all the components, also does datalogging so I assume you can review historical. I suppose I should be able to monitor in/out from battery in the BMS too, as...
  17. L

    Feedback on Off Grid Cabin setup

    Was there a reason for not using the monitoring in the Conext system to get those values? Or just looking for a second opinion on them? Conext software should be able to get power in/out of all the components right? Good idea with the DC circuit too, may be worth trying to run some of the gear...
  18. L

    Feedback on Off Grid Cabin setup

    Ah nice! Good to see someone who has one in use and it was worth the extra $$ Looks like a very neat install, I see the lightning arresters there too, will have to add those to the shopping list. Are those current meters (blue screens between the SCC and Inverter)? Also what is that coming...
  19. L

    Feedback on Off Grid Cabin setup

    Also wondering @Horsefly what you used for the switchgear? Did you use the official Conext AC/DC enclosures? The Midnite Solar E-Panel? Or just built it out yourself? The official switchgear looks nice and straight forward, but pretty pricey. Midnite one is good too as it’s all in one, but not...
  20. L

    Feedback on Off Grid Cabin setup

    I’m thinking the higher voltage SCC may be the way to go, with #6 there is plenty of room to expand (higher number in series and additional strings in parallel), with what seems like similar upfront cost given the price of copper. The panels are undersized for the battery capacity too so may...
  21. L

    Feedback on Off Grid Cabin setup

    Thanks for the run down, good to know the math behind the magic calculator! The property is upstate NY so gets down pretty low, I think it would push it above the 150v limit of the smaller SCC. Knowing that would you think it is better to spend the extra money on bigger wire or a bigger SCC...
  22. L

    Feedback on Off Grid Cabin setup

    Ah k, that'll do it. So if I recalculate at 40.8v @ 10.66A per panel, so 82V @ 10.66A per string, 82V @ 33A for the 2s3p it is #0 for 2% loss and #2 for 3% loss. Either way #2 or #0 are significantly more expensive right? So I could spend the difference in wire cost and go up to the 80A 600v...
  23. L

    Feedback on Off Grid Cabin setup

    Hi Horsefly, I was using 49.1 voc and 11.38A Isc per panel, so ~100v @ 12A per string, then 100v @ 36A for the 2s3p setup. Running 100v @ 36A through the renogy calculator (https://www.renogy.com/calculators#tab_solar-cable) with 2% loss for 200' came out at #0. Am I not supposed to add the...
  24. L

    Feedback on Off Grid Cabin setup

    Also forgot to mention there would be a well pump somewhere down the line too
  25. L

    Feedback on Off Grid Cabin setup

    Hey Everyone, Long time lurker and the info here has been invaluable to planning our new system. Hoping I could get some feedback on component selection. A couple thoughts: 1. I wanted to build something we can expand over time, 1 or 2 new batteries and expanding the solar array when needed...
Top