You basically need to ignore the positive balance leads besides the one on the battery that the main positive output is coming off.
Watch the first 2.5 min of this vid.
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That does help. it was the order that I couldnât remember, and the placement of the negative and positive main.
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I like that design. Looks a bit like mine 
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screw you with your fancy balance wires
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Thatâs so clean. Is this getting shrink wrapped too? Maybe some foam for vibration dampening under the wrap? Is this going in a box on top?
Not critiquing at all as itâs beautiful and seems very safe in itâs current config with the holders and all. Personally I love to go wasting material, but Iâd kapton over all the nickel, then fish paper over the kapton, kapton over the balance wires, fish paper over the balance wires kapton, craft foam all around and double the corners, and shrink wrap all that. Probably overboard but thatâs how I like my batteries personally. Probably super unnecessary too and again probably a huge waste of material.
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Iâm not gonna go overboard with kapton, fishpaper and foam but I will add some.
Not sure about shrink wrap. Would have to order some.
The pack will go in a box surrounded by foam. Probably secured with velcro straps.
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Obvious photoshop.
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Great work. However I would suggest more than a set of spot welds.
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So curious about the innards of my Unik flex battery and purchased this second hand. I opened her up and found some stuff that made me questionâŚyou know safety.
My concerns (may be right or wrong, please advise here master builders)
- Spaghetti monster balance leads.
A) overlap
B) long and soldered (assumed) & heatshrink connected to extend
C) Lack of insulation from cells/ buckle
-
Folded nickel connecting every other p group - I know there wonât be much lateral flex but enough even small over time wears that shit down.
-
nickel not trimmed/rounded. Especially at the battery ends where rub can and Iâm sure will happen with flex.
Anything Iâm missing gents?
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Yeah thatâs a mess.
You are going to have to take that wrap off and sort it out. Those balance leads are a fire waiting to happen
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First thing iâll do. posted on other forum to see if okp would comment.
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Is the balance wire overlap still an issue with stiff/non flexy boards?
Unik was two guys. Okp and another person. Okp left Unik recently though I think
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Good to know thanks
Itâs a good idea to put kapton or fish paper between balance leads when they have to cross over each other. ITs also better to run silicone insulated high strand count wire instead of the PVC insulated crap wire. PVC melts with heat and exposes wire during a hard short but silicone wonât do that, the wire will just burn up inside the tube and break the connection. It also doesnât squish-and-expose as easily, but it will split with enough pressure.
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A: not the best thing to do. Because they can wear and shortcut each other.
B: some are to long so better to make them shorter. That those extended ones are soldered is no problem if it is not at a place where is flex. How are you ever going to make wires longer?
C: canât tell until you undo all the tape
That is no problem, because you are not going to flex the pack that way. It is used in almost each evolve battery mod. Because there is no space for a other way of building.
Or you need to build 2 rows of 5s4p and add isolation between both side. But that I donât recommend.
It is suggested to do. I do it on each pack. But it is not a very big problem when it is not done. Almost each company donât do that because it take much more time.
Funny that you are sure it is going to rub when you are flexing the battery. 
those nickel is welded so it canât move. Only thing they can rub is wires that goes over that nickel. But I hope they guys who build it where smart enough to use that tape between it.
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Funny that you are sure it is going to rub when you are flexing the battery.
The enclosure ends are hard 3D printed plastics and with flex, would that not be the highest probability of rub with any space in enclosure?
But I hope they guys who build it where smart enough to use that tape between it.
Iâll open it further and have some Kapon tape but it doesnât look like they put tape between. When I flex the battery even slightly I see wires moving around which makes me really uneasy.