the mental gymnastics is crazyyyyy
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Bruv, gtfo with your victimization complex. You come in here with what you know will be controversial ideas and will raise hackles and then whine and moan bc people are telling you you’re wrong with compelling evidence? I’m all for thinking outside the box and welcome new ideas but don’t act butthurt when your conjecture gets thrown under the proverbial bus.
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Came here for this exact gif lmfao
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Come for the flame protection, stay for the flame wars
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Hey guys, i would like a little help regarding my battery build. My plan is to stack 2 or 3 layers or nickel on a 4p p42a group, series connections will be double 12 awg, nickel is 0.15*8mm (see attached pics for layout) unfortunately I’ve read that stacking nickel is not up to current standards but I’ve already welded the first layer on the groups, my question is:
How can I make it as safe as possible this way (without tearing up the nickel and redoing it) also I would like opinions regarding if I should use 2 or 3 layers.
Any help is appreciated
Hey all, whereabouts do you put the temperature sensor wires in your packs?
Ideally 1/4th along the left and 3/4ths along the right side, on top of the parallel group insulation but under the final layer of shrink wrap (same plane as balance leads, glued or taped the same as balance leads)…in practice they are loose in the enclosure on either side of the battery or I don’t even take the rubber band off 
Post more pics of your enclosure with the groups laid out. Also, where do you intend on connecting your wires for the series connections?
Does someone know of a cheap 10-12s pack/cell voltage display that displays individual cells? Have some packs with dumb bms’s that I want to check the cell voltages every know and then and I don’t like testing at the JST connector pins with my fat multimeter probes.
I found one on Ali but it’s 70€… (https://fr.aliexpress.com/item/1005001449392485.html?gatewayAdapt=glo2fra)
Amazon has a bunch. DROK is a decent brand and I saw a bunch on there when I looked.
Should have mentionned to check individual cell voltages but thanks
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My bad. I skimmed over ur post too quickly
As I’ve wrote earlier I’m more interested in stacking of the nickel strips in a safe way and also if I should use 2 or 3 layers.
Originally I was thinking about 3 (0.15*8mm). in the configuration I uploaded technically all strips going to the series connection only carry the current of one cell. Since I won’t be running the pack at full all the time maybe only 2 layers will do, opinions?
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If you need to deliver more amps to the series wires, you could solder 4 of them, one between each cell. This creates minimum hotspots as each cell sends its current off on 2 directions, fully utilizing the available nickel. Hypothetically good for 30A per cell with 0.15x8mm
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Don’t need to do all of them, just 3 is fine.
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It’s not about the capacity of the wires, but the path current takes through the nickel. Refer to this hasty napkin drawing:
(Red = current source, blue = current sink)
Leaving out one wire will redirect two of those “17A” arrows to “overlap” with the other ones, reducing the capacity of the system
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