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  1. Bluedog225

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

    I’d be careful with the newer and cheaper versions. I’ve been finding sellers slapping a well reviewed label on other products to meet the demand of people wanting to buy them. I vaguely recall some of Will‘s videos where the original teardown looked good and a later teardown looked abysmal.
  2. Bluedog225

    Windy Nation

    Good to hear. Thanks all.
  3. Bluedog225

    Windy Nation

    I’m in the market for 10 awg solar (outdoor rated) wire. Interestingly prices are pretty dramatically different at my usual vendors. I’ve never purchased from Windy Nation. Though I’m generally aware they’ve been around for a while. Any concerns? Thanks
  4. Bluedog225

    Unintended ground rod

    In 100% convinced by those who say everything should be bonded together and run to a single earth ground consisting of two grid rods at least 6’ aside and bonded together. This includes the frames of solar panels and the racking system. But, what do I make of a racking system that is...
  5. Bluedog225

    Victron Quattro shutdown voltage

    I was thinking that the voltage shown on the lynx bar would be what the inverter would sense when deciding whether to turn back on or not. Maybe there’s some fancy communication going on where the inverter instead sees the actual battery voltage. That’s way above my knowledge level.
  6. Bluedog225

    Victron Quattro shutdown voltage

    Thanks. I was thinking that once the sun shines on the panels, voltage would go way up without regard to the battery state of charge.
  7. Bluedog225

    Victron Quattro shutdown voltage

    Good evening, I’m taking another run at figuring out a way to air condition my conex. Here’s what I know so far: 1. Current Connected programmed my Quattro to shut down at 48 V. This threshold can be changed. 2. When voltage rises, the Quattro will attempt to restart. I believe 3 times...
  8. Bluedog225

    Used solar panel produce less... ?

    We’re usually pretty civil in this forum. Be nice to keep it that way.
  9. Bluedog225

    Used solar panel produce less... ?

    They have some nifty solar panel testers on amazon. Work great.
  10. Bluedog225

    Expedient setup

    They are 12 foot galvanized h-beams. Got about 50 off craigslist. I will do something more formal with them. Right now, they are just going to lay on the ground. May get some limestone blocks to get a better angle. Now that I’ve put them out, I may use them permanently with some sort of...
  11. Bluedog225

    Expedient setup

    Thanks. Curious where you find this info.
  12. Bluedog225

    Expedient setup

    Jeeze. Over current protection between the parallel strings, between the combiner and the mppt, and between the mppt and the bus bar? Though the lynx covers the last one, I think.
  13. Bluedog225

    Expedient setup

    I don’t doubt you are correct. I was trying to reconcile this statement from the resource. “panels have a 'series fuse rating'. This is the *most* current the panel can handle without damage and therefore the OCPD current rating must be less than this value. This value is usually quite high...
  14. Bluedog225

    Expedient setup

    Yep. Or one just like it. I’m beyond the specs but think it’s solid.
  15. Bluedog225

    Expedient setup

    Tamarack post caps. The rest as above.
  16. Bluedog225

    Expedient setup

    These fuses don’t seem to come in fine increments. It looks like 10 or 15 amps. 10 is too low and 15 is too high. Or an I missing the boat? I’ll have another look tomorrow when I’m clear headed.
  17. Bluedog225

    Expedient setup

    Well, the Overcurrent Protection Devices (OCPD) on Solar Arrays resource document seems to indicate that 3 or more parallel string protection must be less than the series fuse rating. That points to a 10 amp fuse. A 15 amp file is too large. But the over current protection device needs to...
  18. Bluedog225

    Expedient setup

    Thanks. It’s not sinking in. I’ll study up some more.
  19. Bluedog225

    Expedient setup

    4” and 3” rigid conduit, double strut, and some rails I got from resort. The name of the post caps isn’t coming to mind just now.
  20. Bluedog225

    Expedient setup

    Yes. Many plans for later. Needed to throw something down quick.
  21. Bluedog225

    Expedient setup

    I see. I had it backwards. Of course the current flows to the short. Still a little confused. If the shorted panels can absorb their own 9.26 amps, and the other string sends them another 9.26, then don’t we exceed the maximum rating of 15 amps?
  22. Bluedog225

    Expedient setup

    And while we’re are here, with these panels, wouldn’t I need a fuse for 2 parallel? Or am I confused?
  23. Bluedog225

    Expedient setup

    First, yes on grounding. Will do. Second, they are 15 amp max series fuse. I’m just wrapping my head around your posts on parallel fusing and multiple strings. If I understand, one string shortening will send 9 amps to the other strings thereby exceeding the 15 amp limit. Right? Switch...
  24. Bluedog225

    Expedient setup

    Here’s my expedient ground mount. I’ve got to get some power to cool the conex before summer. Expansion later. Plan as follows: 3 panels per string at 38.7 volts. 1.2 temperature safety factor. 139.2 volts on Victron 150/35. Check. 9.26 amps Isc per string. 3 strings. 27.78 amps...
  25. Bluedog225

    Combiner box issues

    Oh. I get it. Because the amperage will be greater going to the MPPT than the individual strings. Right? I guess I don’t know why people use fuses for the strings and breakers going to the MPPT. As opposed to fuses for both. I’m guessing for the disconnect functionality. Am I right in...
  26. Bluedog225

    Combiner box issues

    Thanks. Is the purpose of having the fuses and breaker simply for the switch function?
  27. Bluedog225

    Combiner box issues

    I’d like to understand this. What are the components from left to right. Power in to bus bars Breakers Thing? (Surge protection? Another breaker? And where is power out? Thanks
  28. Bluedog225

    House burned down

    Wow. Agree. No.
  29. Bluedog225

    Reliable product to replace Chinese all-in-one inverter

    Curious, where were you locked and/or banned?
  30. Bluedog225

    EG4 Mini-split kinked one of the copper line sets

    Maybe one of these.
  31. Bluedog225

    House burned down

    Relevant note. I was hooking up my blue Sea class T fuse and holder, and there is a sticker on the cover that says something like explosion proof when cover in place. This indicates to me that the class T fuse contained within the holder is not ignition proof without the cover, I’ll get a photo...
  32. Bluedog225

    EG4 Mini-split kinked one of the copper line sets

    Shirley you can get a new line set somewhere.
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