Recent content by HydroGeo

  1. H

    w0ss semi DIY powerwall V2

    I checked my other modules and none had continuity between the case and neg terminal. I also finished soldering my boards and installed them to check the cell voltages. Everything looks good. The cells provided consistent voltages and appear to be well balanced. One thing I noticed was...
  2. H

    w0ss semi DIY powerwall V2

    So far, I have only checked one of my three modules after seeing that post a few pages back. I did not have continuity between the negative terminal and the case suggesting to me that the case was not bonded to the negative. I still need to open the modules again and inspect them in more...
  3. H

    w0ss semi DIY powerwall V2

    I'm curious what kind of fuses folks are using in their systems. I am planning to use a class T HRC fuse (200 or 225 amp) as a main fuse from my main positive buss bar to to the inverter; however, I would also like to place lower amperage fuses (100amp) coming off each of my batteries. I've...
  4. H

    w0ss semi DIY powerwall V2

    Wow, that's great news. Thanks for sharing.
  5. H

    w0ss semi DIY powerwall V2

    Awesome! thanks for the photos. That helps. Keep us posted if you try another capacity test.
  6. H

    w0ss semi DIY powerwall V2

    I'm a long way from being able to hook up these modules and do any testing on them, so I'm curious to know from you folks who are using them, what sort of capacities are you seeing and how many kWh's are you estimating per module? BH was claiming 90% based on their testing so I'm hoping people...
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    w0ss semi DIY powerwall V2

    Thanks, that's what i figured. I've already ordered the surface mount fuses and will order the board as is. Would it be possible to get a close-up photo of one of your boards so I can get a good view showing how the fuses should look when installed properly? That would be a big help. Thanks!
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    w0ss semi DIY powerwall V2

    Just a heads up, if anyone is looking to order one of these breakout boards (thanks again w0ss for sharing the design and info!), JLCPCB is sold out of the fuses. I don't have any prior experience with ordering through them, so I'm not sure how long they take to restock. Given supply chain...
  9. H

    w0ss semi DIY powerwall V2

    Hello. A few weeks ago, I picked up 3 of the LG Chem modules from that batch of 60 that BH was selling. I'm pretty new to all this so I'm glad to have found other knowledgeable folks who are using these batteries and sharing their designs/experiences. Thanks! It has been very helpful. I will...
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