Search results

  1. D

    Updated Battery setup.

    HA! Thats fun, I was using 3 full modules in two 14S of Bolt Batteries. I actually own a Bolt EV that is being repurchased by Chevy. After the recall I reached out the BH and asked what they could do to help me considering the batteries are in my house, they accepted their return due to the...
  2. D

    Updated Battery setup.

    Yes I did not mess with a top balance honestly. I likely should have but my situation was slightly rushed. I could in theory go back and easily fix that problem, but I am trying with a balancer first to see if it can fix that for me. Thank you so much for the feedback I will try to update...
  3. D

    Updated Battery setup.

    Another update video!
  4. D

    Daly BMS Balancing

    Yea that would be amazing! Just would need a 16S
  5. D

    Daly BMS Balancing

    Does anyone know where to get a female plug that would match up to the Daly BMS so you don't have to run all new leads to each cell.
  6. D

    Updated Battery setup.

    Hey everyone, Just wanted to share my updated setup that replaced the Bolt batteries from Battery Hookup. This is using their new module Lifepo4 Modules. Let me know if you have any questions!
  7. D

    price too low? too good to be true?

    I figure I would add this here vs making a new thread. Is this too cheap? https://www.amazon.com/gp/product/B09G2TRDYQ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
  8. D

    New Bolt EV Batteries and no BMS, one year observations.

    After speaking with battery hookup the Bolt batteries will be going back to them. I have ordered replacement batteries from them going to build 4 100amp hour packs from their lifepo4 modules that are new in combo with a Daly 100amp BMS for each pack. I will be posting a build as well as a...
  9. D

    17S BMS for LiFePO4?

    Thank you for the help!
  10. D

    17S BMS for LiFePO4?

    Yes so my Bulk would be 58.4V and float would be 56V I believe for full charge. I think for future proofing if I needed to expand the pack staying 16S would be smarter.
  11. D

    17S BMS for LiFePO4?

    Yea I'm starting to realize that. I don't know how often I would fully charge the battery anyway, so it may be mute point. If it gets fully charged only 1/3 to 1/2 of the year does it really make any difference, it is still going to last nearly 10 years to 80% I would think.
  12. D

    17S BMS for LiFePO4?

    So my charge controller can only charge to 58.4V that is 100% SoC for this chemistry 3.65V in 16S. So I'll get some 2000 cycles charging to full every time. So I want to only charge to about 90% to increase the battery life. 90% SoC is about ~3.44V for this chemistry, which means if I am...
  13. D

    17S BMS for LiFePO4?

    I think I should clarify. The LV5048 has a max charging voltage of 58.4V. If I use a 16S that means each cell would be at 3.65V which is fully charged. I don't want to fully charge the cells, I plan to use about 90% of the useful capacity. So by adding a 17th cell that puts me at ~3.44V with...
  14. D

    17S BMS for LiFePO4?

    I can't seem to find a good solution to this problem, so perhaps it does not exist. For my application it would be helpful to find a good 17S BMS as my control a MPP LV5048 can charge up to 58.4V which is the max ideal voltage anyway for each cell. To keep long life and max out the battery...
  15. D

    New Bolt EV Batteries and no BMS, one year observations.

    All modules will be replaced based upon the paper work they sent(which I received), with the new chemistry giving 8% more capacity. As for gas or electric, I hate gas but "free" is "free" more importantly it is costing Chevy money. I'd much rather they had bought back my car, I'm still working...
  16. D

    New Bolt EV Batteries and no BMS, one year observations.

    My batteries are Chevy BOLT, with a "B". I have 3, 6kwh modules.
  17. D

    New Bolt EV Batteries and no BMS, one year observations.

    If you call and complain to GM/Chevy EV hotline they will put you in a loaner car free of charge and pay for your gas. I'm currently also working on a buy back on my 2019.
  18. D

    New Bolt EV Batteries and no BMS, one year observations.

    BMS are being integrated now. So far results have found that the batteries after this time have remained in spec. ~.02V difference. I'll be adding the second BMS tomorrow and actually hooking them up to allow them to cut off the power later this week. I guess it might do some sort of...
  19. D

    New Bolt EV Batteries and no BMS, one year observations.

    About one year ago I purchase and set up about 13.5kWh useable Bolt EV batteries that where new from batteryhookup. For this year I have operated without a BMS. I actually have two batteries technically in parallel a 14S2P setup. My new Chevy Bolt EV battery modules(for my home power system)...
  20. D

    Understanding MPP Solar charge settings for LifePO4 batteries

    I have a LV5048 I don't see it listed as supported.
  21. D

    Game Changer? BLUETTI EP500 Solar Generator 5100wh capacity <$3,000

    Hate to say it but it seems like complete junk.
  22. D

    LV5048 Solar Charging Confusion

    Problem 2 solved!!!!! In the controls for solar charging where you set the max amps allowed to charge the battery that value is divided by 2. All LV5048 units have two MPPT inputs and regardless if you are only using one it still splits this max charging amps value. If you set it to 40...
  23. D

    LV5048 Solar Charging Confusion

    I HAVE SOLVED MY PROBLEM! I failed to read the instructions...so I think it solved it. I failed to follow the instructions correctly. I plugged the solar into MPPT2 rather than 1. I only have one array it must be in 1 or it acts weird. Not sure if this matches up with others issues...but it...
  24. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    I HAVE SOLVED MY PROBLEM! I failed to read the instructions...so I think it solved it. I failed to follow the instructions correctly. I plugged the solar into MPPT2 rather than 1. I only have one array it must be in 1 or it acts weird. Not sure if this matches up with others issues...but it...
  25. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    The Float does not seem to do much lowering it seems like it would trigger it to go into bulk mode. Right now I'm seeing near peak performance that I would expect honestly. Have to wait and see once I have no more shading on my panels to know for sure.
  26. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    I'm not sure that I can disable it, but it set it to Bulk set to 57V and Float to 57V. I am pretty sure that the Float is the issue it is just not obvious and whatever timer it has running inside takes it while to shake out of it. Shutting the whole system down might work in theory to reset...
  27. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    Actually I think that may be the problem, you want to make sure it goes well below those values for a while like over night.
  28. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    So today after over night having set the float and bulk to my target of 57V for fully charged it now seems today that so far it has been working correctly as far as I can tell. I've never had it just not charge but that is interesting. At the moment I am happy with what I am seeing. It seems...
  29. D

    What triggers Growatt 3000 to exit float and resume bulk charging (via solar)

    Mine does not stop charging ever from my experience so far, however both my Bulk and Float are set to my target voltage of 57V. However I do notice during the day my peak pull rarely goes above 20 amps to the batteries regardless of settings it seems to act like I have max charging voltage set...
  30. D

    LV5048 Solar Charging Confusion

    I have it set to user. I don't have a Growatt I have a LV5048.
  31. D

    LV5048 Solar Charging Confusion

    Yea that is why I'm kind of fighting with this loss of peak performance in charging the batteries. Still trying to hunt for a solution.
  32. D

    LV5048 Solar Charging Confusion

    Yes that is correct. Chevy Bolt EV batteries actually. Fully charged would be 4.15V
  33. D

    Growatt 3000 solar charging weirdness??

    So changing that 22 setting on mine is 31 causes it to really lower what is is pulling from the solar panels.
  34. D

    LV5048 Solar Charging Confusion

    My float is set to 57V. It should not be causing anything. My batteries can charge full flank speed up to 57V and absorb up there. 57V is not fully charged for my batteries so it should be a non issue. I'm going to have to keep playing with settings to figure out what is causing it to step...
  35. D

    Growatt 3000 solar charging weirdness??

    Any idea how to turn this kind of feature off. I am personally losing huge amounts of power though out the day due to this. Likely close to 25%. How can I kill this float mode thing. My batteries are no where near full and its doing this behavior also this is with the LV5048 so it has the...
Top