diy solar

diy solar

Search results

  1. G

    Water heater load/surge causes projector to turn off

    Hey, so I currently have two LV6548’s in split phase powering my home with two 16s 280ah packs in parallel (off grid). Within the home I have two large loads which I switch remotely as needed. They are a hot tub and electric water heater. Both consume around 5000ws. I tested the inrush surge...
  2. G

    LV6548 clone cross communication compatibility?

    Hey, I currently have x2 MPP LV6548 in split phase setup. In the future I am considering adding another two (so four in total). When adding the other two will they work with a LV6548 clone or a EG4 6500 for example? I am unsure what level of information communicates between them and whether...
  3. G

    LV6548 internal temp probe location?

    Hey, I found that my two LV 6548 split phase inverters have been hitting their over Temp protection when running high loads for a short period. Currently it’s winter here and my garage is fairly cool. I’ve seen a lot of other posts about hooking up a small AC unit or fans to bring down the...
  4. G

    Salvage/permanent disconnection from grid

    Hey, so for the past year, we have been building an off grid system. All is good and running fine for the past few months with our meter off and using our generator as needed. Now we’re at the point of where we feel comfortable ending our electrical service. However, I was not aware here in...
  5. G

    Recommend x2 bms for parallel setup

    Hey, I have x2 jbd 200amp BMS’s paired to their own 16s 280ah packs with a view to parallel charge/discharge. I found that only one would function (charge/discharge) unless I turn the other off, and then it would switch functioning over to that pack. After emailing a few sellers I was told...
  6. G

    B- cable getting hot on charge

    Hey, I have a JBD 200amp BMS hooked up to a 16 cell eve 280ah pack and two split phase LV6548's. The BMS came with 4awg high temp silicone cables (states 600v 200c); however I decided to double both cables so there are two X2 4awgs per connection now. I noticed that during high charging amps...
  7. G

    LV6548 Flickering MPP sent X6 Caps. Hesistant

    Hey, upon install (split phase parallel) i noticed some flickering on certain lights in our house. It could be where there are higher draws on the shared house electrical circuit on that light or maybe cheaper led/incompatible to solar... I went through MPP, sent logs etc and they advised...
  8. G

    SA Smart shunt vs dual JBD BMS

    Hey, through testing and other online posts it seems you have to choose between your BMS/BMS's or a smart shunt to be connected to SA. I wish there was an option to have both devices connected, but im guessing theres a good reason why you cant. For the past week ive had my smart shunt connected...
  9. G

    JBD BMS communication to LV6548 via Can/RS485 possible?

    Hey, I wondered if anyone can confirm if its possible to connect my JBD BMS (JBD-AP21S002) to my LV6548 via can or RS485 to communicate info? I found quiet a few posts looking at the subject and followed a few links as well as a MPP pdf stating communication protocol. So far ive made a custom...
  10. G

    Spring compression at full travel swelled cells

    Hey, as above my compression pack is almost at full travel on the springs due to some pack swelling (see post for details https://diysolarforum.com/threads/bulges-on-side-of-cells-during-top-balance.69878/#post-883917 ) It is 16s 280ah x2 rows of 8 cells with a six spring formation. The two...
  11. G

    Bulges on side of cells during top balance

    Hey, just in the process of a 16S. 280ah top balance. Using the ZKEEBCA 40 L. They are Configured in parallel and a under compression. I had previously been using the cells with the inverters but found imbalance at the higher range of 3.4v when charging via the charge controllers I noticed a...
  12. G

    Battery fuse blown twice

    Hey, about three or four days ago a 200amp T-class fuse blew on the connection between my 16s 280ah pack and the bus bar. I figured the headroom on my BMS was too high 18000 and the charge control amperage was too high 80Amp on each controller (split phase). I ordered a replacement (coming...
  13. G

    X2 lv6548 split phase, x2 16S 280ah parallel BMS help please!

    Hey, finally got the array bulit, X2 lv6548 setup split phase and batteries hooked up yesterday. All has been smoothing sailing, but i have been dreading the BMS/inverter battery settings part. All seems good however only one battery pack charges at a time. I have X2 JBD 200amp BMS's hooked up...
  14. G

    Panel grounding to rod at location (not to main breaker due to distance)

    Hey, I have just built my ground array (lumber) with 32 panels approx 300ft from my property. The setup runs 6awg PV wire from the panels to my inverters at my home (off grid setup). I had planned to ground my panels with grounding rods at the location for simplicity due to distance to my...
  15. G

    Help connecting terminal to battery box lug

    Hey, I appear to have put my battery box terminals in the worst place (see photo). The postive connection is pretty close and off to the left (making it difficult to perfect a 90d bus bar). I am considering making a cable with X2 lugs with extra length if needed to loop around. Can anyone...
  16. G

    Combining 4 inverters AC out (split phase) to a single double pole 100amp breaker?

    Hey, this a theoretical future question as I currently only have X2 inverters. However I may upsize my AC out wire gauge if feasible. Most posts as regard X4 inverter builds have two 60amp double pole breakers in their panel (one breaker per inverter on different phases). Would it be possible...
  17. G

    Early arrival capacity test/discharge/storage advice

    Hey, my X32 docan eve 280ah cells turned up earlier than predicted and I don’t have my array built. It’s likely I won’t put them into commission for prob about 3 months. So far, I have checked them externally, confirmed each voltage (all are around 3.29v) and am building a spring compression...
  18. G

    Any benefit to multiple smart shunts

    Hey, I have X2 16 cell eve 280ah packs that I am setting up. I intially purchased a smart shunt to monitor the overal usage of the system (combining both/32 cells via the negative feed/busbar). Is there any benefit to buying another smart shunt and having one for each 16 cell pack? Im guessing...
  19. G

    should i disbute will they affect performance?

    Hey, recieved X32 eve 280 from docan. I checked them all and they seem fine. Slight curve by the electrodes. X2 have small dents (see photos). I am X1 bms short (ordered x2) and have sent a message for a resolution. Is this anything to worry about and do i need to highlight it with the seller...
  20. G

    Laminated pine 1/2" thick enough? 16C compression with springs

    Hey, I just purchased some laminated pine for making my eve 280 compression sides. I will have two rows/columns of 8 cells with 6 compression springs (2 either outside edge and 2 inbetween the cell rows). Will 1/2" be thick enough each end or will there be flex over time damaging the cells? I...
  21. G

    Compression orientation & SOC level when tightening

    Hey, I am currently awaiting X32 eve 280ah cells from Docan. I have gone down the rabbit hole of discussions as regard compression and went from a no compression stance to to prepping for a compression setup! I was unsure whether to start a new thread or jump long train discussion post. I...
  22. G

    What quality capacity tester do I need?

    Hey, starting to get into the battery ordering/building/testing side of things. I am ordering X32 Eve 280ah soon. Can someone guide me in terms of what to purchase to test the capacity upon receipt? I have seen videos on the cheap option circuit board with a fan attached to it. I’ve seen the...
  23. G

    Parallel LV6548 wire gauge for future proofing?

    Hey, I am trying to confirm wire gauge and T Fuse sizing for X2 LV6548's in parallel. Ive looked at various calculations and read other similar posts and posted here (derailed into breakers and pre charge disconnects!). I became set on:- 2/0 AWG from the inverter to the bus bars (edit:-...
  24. G

    Split phase two LV6548 not enough. X3 inverters Max AC out Amps?

    Hey, after creating a build and starting to purchase items I have found a potential flaw... my usage. I have a hot tub that runs at 240v and in combination with other items in the house may breach the threshold/ability for X2 LV6548 in split phase. Running the heater, jets and other 120v items...
  25. G

    Lynx Distributor modified bus bar wiring ok?

    Hey, I am currently putting together a schematic of my build (see PDF attached). I am looking for confirmation of if it is ok to wire my split phase LV6548 + and - to the external bus bar post (see jpeg) or whether i need a terminal doubler? I know with a standard bus bar you can put two lugs on...
  26. G

    LV6548 DC battery disconnect 160A enough?

    Hey, I’m looking at buying two “Suntree 160 Amp 2-Pole DC Circuit Breaker for Off-Grid Solar System, Molded Case”. According to the manual the typical amperage is 153 A. will this breaker/disconnect be enough or liable to false trip? I have read other posts recommends that vary from 160A to...
  27. G

    T fuse Size & wire gauge for split phase X2 LV6548

    Hey, could someone please give any advice on the correct T Fuse size and wire gauge for a split phase setup (LV6548). I will have 16 cells hooked up (still looking at reliable Aliexpress sources, so 16 * 3.2V * 280Ah = 14.3kWh. I will likely add another 2-3 16 cell sets batteries over time. So...
  28. G

    gauge wire interconnect between PV panels

    Hey, strange question but I am looking for confirmation of what wire to use in-between panels when hooking them up together and leading to a disconnect box on the ground array (P2S4). The distance from the ground array to the inverter will be 160ft and 6 gauge wire but the hookup wires on the...
  29. G

    Off Grid setup details for review - long distance cable to main panel

    Hey, long time stalker of the forum for information gathering. I am currently considering going off grid and would like some general feedback on my planed setup based on stats/circumstance. I do have one specific question as regard long distance cable to my house that I have been unable solve...
Back
Top