diy solar

diy solar

Recent content by JoeHam

  1. J

    OOL - what is the cheapest LiFePO4 12V 100Ah battery you'd recommend to a family member

    Hey, those are real company names so they should count. E is the only vowel you need to win. 😎
  2. J

    OOL - what is the cheapest LiFePO4 12V 100Ah battery you'd recommend to a family member

    Sorry, my WZRELB 3kW inverter is 48V nominal. ☹️ But it does look good sitting next to the DJLBERMPW battery in my off grid ham station where I run both 48V and 12V nominal systems. 😎 I do enjoy the crazy chinese names 🤪.
  3. J

    4 X class solar flares to impact this weekend.

    Of course not producing accurate forecasts is very different from the forecasting field being in its infancy. That’s my point, they’ve been at it a very long time and aren’t terribly good at it. I can agree that forecasting has limited accuracy and utility despite being studied for well over...
  4. J

    4 X class solar flares to impact this weekend.

    Given that Richard Carrington was studying this back in 1859 I don’t think infancy is remotely accurate. https://en.wikipedia.org/wiki/Carrington_Event And I’ve met Dr. Skov before and her life’s work for the past decade is predicting space weather while teaching a graduate level course on...
  5. J

    Windy Nation

    I’ve always bought direct from Temco (free shipping over $99) or windy nation through Amazon.
  6. J

    4 X class solar flares to impact this weekend.

    Maybe you will get shocked if the US doesn’t have a solution 😎.
  7. J

    Midnite Solar Announced their new 10kw AIO at Intersolar Today

    Wow, impressive thread drift from Midnites AIO to telling Guyana how it should be run 😎.
  8. J

    OOL - what is the cheapest LiFePO4 12V 100Ah battery you'd recommend to a family member

    I bought a DJLBERMPW brand on Amazon for $168 and it works fine. Completely ridiculous name though. The rumor is that they couldn’t come up with a name for the company, then a cat walked across the keyboard and they said screw it, that’s the company name. 😎 One of the teardowns from YT :
  9. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    14.6 (3.65) is a bit high for my taste as well. You can do the math for a 16s and I wouldn’t be a fan either. 3.2V is not terribly low but there’s not a ton of energy left below there. Let me offer some references to chew through and make your own decisions. First...
  10. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    I’ve never learned how to intersperse comments on my iPad so I’ll address the three above quotes in order. Just live between the knees is actually a reference to the discharge curve you posted in your post #26. That discharge curve is not specific to Renogy but is accurate for all LiFePO4...
  11. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    Although the BMS has a number of functions there are two ratings that are important for your system design : What is the maximum Amperage it can deliver and what is the maximum Voltage it can operate at. Either can be derated by the manufacturer, primarily for cost savings, and I get that. Not...
  12. J

    4 X class solar flares to impact this weekend.

    I’ve still got solar, radios, antennas etc. plugged in and running fine. On another note, this observation is from someone on a radio forum I’m active on : “Those of you who have solar eclipse glasses left over from last month's eclipse might want to take them out to have a look at the Sun. I...
  13. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    More like forgetting to tell them not to fire the M16 when the barrel is plugged with mud 😳. Now that’s a catastrophic failure !
  14. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    Hopefully this link works : https://solartown.com/content/renogy/batteries/LFP50100170-Manual.pdf The fifth bullet point under “Safety Considerations “ clearly states : • DO NOT string batteries in series. Doing so can cause catastrophic failure. You would think that would be the first point...
  15. J

    SAMLEX PST-600-24 DC-AC INVERTER PURE SINE WAVE 24VDC IN 120VAC OUT 600 WATT...

    Holy crap. The link no longer shows the warning that I literally did a cut and past from on the catastrophic failure warning. Back to searching to see what happened.
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