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  • Post in thread: 60 amp mppt Amazon deal, 50% off

    I don't think so, the only difference is that I literally just finished assembling my YELLOW DEWALT rack on which this will go last night..
  • Post in thread: Safety Gloves?

    Late to the party here, I just wanted to add, both in reply to the quote above and to the thread subject: AC wants to travel to ground, insulation from the ground is a great additional layer of safety protection when working with AC. DC wants to return to its source, it will try to complete a...
  • Post in thread: Non combustible backing board

    My only issue with concrete board is drilling into it, as I'm semi-asthmatic. I guess wearing a respirator would work, but there's post-drilling cleanup to deal with too that I'm not too excited about. Wonder how well that works. After @Bluedog225's suggestion, I also found this intumescent...
  • Post in thread: Is there a difference if I daisy chain batteries or connect them to a buss bar for parallel connection?

    Very cool, much appreciate the info and thanks for paying it forward! Are the ones I linked at AAP the ones? They have a small sale (10% off) and they're in stock at my local store, thinking of picking up like 10 of them.
  • Post in thread: Non combustible backing board

    Got it, I saw the Hardie Backer-specific screws, so just screw those directly in then? Sounds good! I also ordered that NO BURN spray, will see how it works, if it does it would save a step.
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Been doing a ton of research since I typed that message (that's the problem when something becomes an obsession, I can't even sleep sometimes w/o getting the info to clarify things I'm not clear on!) and am now crystal clear. It's a shame that the panels I got are can exceed 50V at the lowest...
  • Post in thread: 60 amp mppt Amazon deal, 50% off

    In for one, I'm in the middle to moving to a 48V system but not there yet, and this will hopefully get me up and partially running on my existing 24V system until I gather all the stuff I need for the new system. Edit: I found this video, guy seems reasonably happy with it. Also found reviews...
  • Post in thread: Is there a difference if I daisy chain batteries or connect them to a buss bar for parallel connection?

    Very good info here, I wanted to ask if internally in a battery made up of multiple cells the BMS protects against a short? My understanding is you want the fuse to prevent melting wires (and worse) in case one battery shorts, what's preventing this from happening inside a battery with multiple...
  • Post in thread: Continuing DIY or give up DIY to buy already assembled battery?

    I wonder, is there a way to get a DIY system inspected in some fashion so that it can be permitted? Ultimately, the prebuilts use the same cells, they just build it to a certain minimum standard, apply for UL listing, get it approved and then it's listed. Much how an inspection checks install...
  • Post in thread: Best crimper for 2/0 and 4/0 ?

    This looks like the best crimper out there, especially for the money (let's call it up to $100). The fact that it's dieless is a huge win as well. Just ordered one!
  • Post in thread: Is there a difference if I daisy chain batteries or connect them to a buss bar for parallel connection?

    Gotcha, I now realize it's literally called Megafuse (: Super small part right, like this? Seems prudent to pick some up esp since they seem rather cheap. Thanks for yet another useful tip!
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Got it. 250A seems to still cover my use case with the additional +12%, which would put me at ~247A. Would something like this work? https://www.amazon.com/Blue-Sea-Systems-5118-Class/dp/B000MMC7SY/ Do I need a holder? Holders seem to be more expensive than the fuse.
  • Post in thread: 1st off-grid adventure — need charge controller advice

    I apologize but I’m having a hard time understanding how the actual connections are made. Does one wire per polarity come from the single string to the switch? How is it wired then, let’s say the switch has 4 poles, 2 per polarity? Is it somehow split then fed thru to poles (per polarity), or...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Thanks, I use search exhaustively but for some reason I didn’t run into this. The pushbutton design looks good. This is a problem I did not anticipate, do most people not have a disconnect on the inverter? Or is everybody running prechsrge circuits? Thank you for all your help, and for pointing...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    I need some help getting the wires into my garage, I am kinda both lost and a little scared since it's punching a hole into the house. First, do I need to run cables inside a conduit? Initially/for a while, this will be a temporary install with the panels laying on the grass (more on this later...
  • Post in thread: 60 amp mppt Amazon deal, 50% off

    Mine just showed up today — do you recommend connecting load to the CC as its manual shows, or can I continue to just run my load off the battery? I would have to cut (read: "make") some cables to connect thru CC? Any big advantage to running thru the CC? I'd rather keep it simple with load...
  • Post in thread: Worth combining cells from two (2) 12.8V bats into one (1) 25.6V?

    New here, and this is my first post! I'm just getting started and bought two (2) EcoWorthy 12.8V 150Ah LFP batteries. I'm using them in 2S for a 25.6V 150Ah battery and I've just run a test of charging my Tesla with my 24V inverter and it worked great. Everything except one of the batteries...
  • Post in thread: 60 amp mppt Amazon deal, 50% off

    I'd like to know this too, and to learn how to tell this from reading specs of a CC. Are the stages you are referring to for charging? And how does that affect how it provides power to the load before/after bat is full — what are the possibilities here, a "dump load" and ..?
  • Post in thread: 64 eve lLF280k version3 cells in 8P8S configuation 24-volt build December 28th, 2023

    Hey Michael, I got a question for you. I noticed you and others hook up Positive (+) to Ground/Earth instead of the + terminal on the bench power supply. I'm trying to understand why, and when you'd do this — can you shed some light? I'm trying to understand it, and ideally be able to decide...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Whoa, I'm so glad I asked. I am not 100% clear on how it happens, thanks guys! Def going for a breaker. To confirm my understanding, while I'm 100% going for a breaker (hoping to order tonight), turning the CC off would be another way to disconnect the load, correct? I guess I should also...
  • Post in thread: Worth combining cells from two (2) 12.8V bats into one (1) 25.6V?

    Thanks so much guys, I'm a tech head and doing this for fun primarily, EE/electronics is my weakest area so what better stuff to "attack" to fill the gaps. Feels good to be part of a community where we listen, help and encourage eachother! Yep, clear on that. I just think that with having to...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Thanks, these look amazing! There is a highly educational video on the product page which I unfortunately can’t link (at least on mobile, will try on my workstation). I’m having trouble reading the diagrams, here’s what I’m looking at: I don’t understand the 1 & 2 versions, assuming the...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Unfortunate. Any local chains (ha!) that carry DC stuff? Thanks, checking them out and adding them to my list of specialized, quality parts suppliers. Thanks, that's what I was actually eyeing — I was actually thinking of picking one of these up so it comes in a box already...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Yea I'm looking hard at 48V it's just a safety thing for now. If/when I build a proper, cased battery I'll feel safer, but right now I'm making my own out of large individual 12V bats and I have 10 year olds around. Also want to keep it low voltage on the battery side (where I expect to work on...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    I found that the 1000V/30A seems to have some advantages: It is DC-only and the Internal Spatial spec is listed as Bigger. Gonna pick one up. There's also this https://www.amazon.com/dp/B0BJVNZ85N/ Which includes SPDs — is that something I need at this point? In the diagram there is a ground...
  • Post in thread: Is there a difference if I daisy chain batteries or connect them to a buss bar for parallel connection?

    Thanks, I was a bit thrown off by the "daisy chain" in the title. Got it. Would there be a case other than accidental where this could occur? i.e. other than a physical wire/object shorting things out, could a cell inside a battery somehow become bad and cause a short? I'd think if so, it would...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    I'm missing something obvious here, to my mind, the way this is shown if the PV input would be connected on the bottom terminals, the only two available, it would create a short when the switch is thrown on. Maybe there is some trickery where the top left goes to bottom right, like the IMO...
  • Post in thread: 1st off-grid adventure — need charge controller advice

    Very cool, I like the visual indication of when the caps are filled. Endgame would be to have some sort of automated circuit to do the lightbulb until the measured voltage across that circuit dropped to near 0V then switch off it, and reset the system every time the breaker is tripped...
  • Post in thread: Non combustible backing board

    Your comment about the industrial look caught my eye and I wanted to do something like that, however I can’t seem to find any gray latex paint at HD/Lowes. All I found is a gray primer. What do you use? And do you prime first?
  • Post in thread: Non combustible backing board

    I have zero experience with paints, mind sending me a link? Would it be something they would mix? I looked on the shelves and couldn't find a single gray latex paint.
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