Recent content by Spongeworthy

I've welded all my parallel groups, but due to the geometry of my pack and about a 50A current draw, it'll be hard to get ideal current sharing using just nickel strips for series connections. I'm thinking about using copper wire but soldering only in between the parallel cells ontop of the...

Yeah I emailed him before posting, just wanted to see if anyone had a solution before I mailed it back to him.

After not using it for almost 2 weeks, the spot welder doesn't even function anymore. The display turns on but trying to weld in automatic or using a switch doesn't work at all, I've tried with my old lipo and a new one. Anyone else have problems with the welder just not functioning?

ru.nkon.nl

? It's no different than the one you just reccomended to me, specs are quite literally the exact same, 65C continuous and 130C burst both at 5Ah.

I actually just picked this one up yesterday https://hobbyking.com/en_us/graphene-5000mah-3s-65c-w-xt90.html A fair bit cheaper, and looks to be the exact same specs.

It seems the gauge of the battery wire matters a lot, a 5Ah 50C 3S lipo I just picked up with 12awg wires performs even worse than the 16Ah 10C Lipo I had earlier. now the welds are barely even sticking. Or the Lipo isn't as powerful as it claims to be, a user on another forum hasn't had luck...

Really? The capacity of the pack is quite large it's equivalent to a 4Ah 40C lipo (unless that's not how lipos work). I'm also having issues with the probes sticking to the welds

Anyone have any success spot welding 0.2mm with 3s 10c 16Ah or around 160A?

I think I understand now, reading a bit more I didn't realize that some cells in a parallel group draw more or less current depending on where the series connection to the parallel group is hence the need for a thick bus across all cells. There's usually multiple series connection between...

Not sure if I'm misunderstanding your post, but why's it carrying 10 A from one series group to the next? Like I said earlier, doesn't the whole 80A run through each series connection?

That pretty much goes without saying. Why is it more important for the ends of the pack to have more conductive mass than say in between each parallel group? Doesn't the same amount of current run through both? I'm just a bit confused since I see some packs that don't do this at all and just...

I see alot of builds that run the + and - leads along all the cells in the first and last groups, what are the benefits to this? I'm building a triangle pack so this isn't an option for me due to the weird cell arrangements.

From what Justin told me and other experiences from users on the forum, about 70A continuous phase amps. More info herehttps://endless-sphere.com/forums/viewtopic.php?f=3&t=82196

Yeah turns out they were fake, I guess NKON is truly the only place to get decently priced cells