Recent content by sailingharry

Amazon can help with fasteners! M6x30 delivered in no time flat: https://a.co/d/iRKaYhV Or 20mm in pretty colors: https://a.co/d/5etPjuy I think those colors are only anodizing, which is just aluminum oxide with dye added. So they are essentially "just aluminum." but if you want studs to top...

That brings up something I've been wondering about. On sailboats, with salt water, we use a lot of aluminum, and then stick in SS fasteners. It is a disaster, an adhesion suitable for space age connections. I've been wondering about SS fasteners in those terminals, but thinking maybe inside...

I think your thoughts are theoretically correct, and in a high-C use, maybe significant. In my case, my load on 3P 300A cells will be 95% 5 to 30A (or .1C if one cell picked up ALL the load), max normal load about 100A for under 20 minutes, and theortical max load of about 200A (toaster AND...

This is my suspicion as well. It may be one of those things we realize is theoretically possible, and then make designing it out a "at all costs" kind of thing -- even though it never actually happens. I'm not terribly worried about them getting out of line vertically. Newton mostly takes...

kromc5, Nice work! A question. You have some pics showing complete systems using the single stud style terminals, and the start of a system using the twin hole style. I can get my cells in either style -- do you have any thoughts on the differences? I note that you only used 1 hole of the...

I realize this is a fairly old thread. But it is very close to my question, and the best I can find on the forum. Rather than starting a new, nearly identical thread, I'll post here. I'm preparing to do a 3P4S build of 304Ah Eve with the new 2xM6 studs. Bus bars in general, and especially...

Already new questions! For my space, an ideal arrangement would be 3 wide sets, one after another (3P4S), which would put 3 terminals side by side. Then each "interconnect" would be 3 connections wide (12 holes) and 2 deep (from first set of cells to second). This would in a theoretical world...

I have a 43' sailboat, currently with 800Ah of AGM. Over the last 3 summers, I've been aware that they aren't long for this world. Yesterday, I used a heat gun with the inverter, and in under 5 min I had a "low voltage alarm" -- and my batteries were at 100% SOC when I started. Not sure the...

I'm trying to settle on a BMS. My power needs are fairly high, potentially over 300A both charge and discharge. Also, since it is going on a boat, I have to be aware of ABYC (building code for boats) requirements. Also, since it's on a boat, I have space and power constraints. So, that said...

It's not a safety concern. I shattered a rigid panel on our boat, and while the glass rained down for weeks (months?), none of the pieces were sharp and none were over the size of a peanut. So, it is potentially a financial risk (who wants to buy a new panel!), but no safety risk. But, on the...

This would address the ability of the solar panel itself to be supported, and may work. But it still leaves the solar array unsupported -- the end of my structural arch is only 26" from the forward end of the solar panels (and consists of two tubes only about 8" apart). There is a welded 1"...

I have a sailboat, and am about to upgrade the existing panels (an accident has shattered my existing, so a chance to redesign). A simple replacement with identical panels will get me about 600W. I'd like to get over that. For starters, consider money to not be an issue (of course it is, but...