Endless Sphere

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 nickel s...

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

spinningmagnets wrote: ↑

Mar 25 2018 5:47am

I'm sure that model will work well, but...it's still 65C

? 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.

a 5Ah 50C 3S lipo I just picked up with 12awg wires performs even worse than the 16Ah 10C Lipo I had earlier Regardless of which "pocket" spot welder you use (I have found four different models), I recommend that you go for the 3S / 130C LiPo...https://hobbyking.com/en_us/turnigy-battery-...

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 with g...

rojitor wrote: ↑

Mar 17 2018 3:47pm

10c? I don't think so. Too low. 0.2 requires big amps.

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?

boisrondevens wrote: ↑

Feb 19 2018 9:41pm

us or cad?

USD, I'll update the OP.

Accidently deleted it previously. For sale is a brand new never used 18 FET(IRFB4110) programmable sine wave controller it came with my kit but I ended up using something else. Comes with a TTL-USB cable for programming with XPD. Features: Compatible with Cycle Analyst V3 Field weakening 3 Speed Pro...

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 parallel g...

If you have an 80A battery pack, and it is 8P, then each cell series connection must carry 10A from one group to a cell in the next group. Once you get to the end of the series groups, those 8 cells in the last row must be able to conduct that amount of current into one wire. If you can visualize a...

All the + series end cells and - series end cells must be connected! That pretty much goes without saying. Ideally with a reasonably heavy (large gauge) "rail" to provide good equal discharge from each series of cells. Why is it more important for the ends of the pack to have more conduct...

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.

I'm on the outlook for the next controller... Given suitable heatsinking: what is the max continuous battery current phaserunner can handle? From what Justin told me and other experiences from users on the forum, about 70A continuous phase amps. More info here https://endless-sphere.com/forums/view...

johnnyz wrote:Thats what I would like to know as well.....

fourbanger wrote:So where's elsewhere?

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

Lets see how long it takes to land... Heres more correspondence from this jerk in Nkon... I asked him to provide a tracking no. His response... "Hi, No, it says it can take over 2 weeks.. Regards, Arjan" Thats it...nothing else..600 cells and 1450 Euro's and this is what I get?...wow....r...

Any Canadians order off nkon? Any surprise fees when the package arrived?

Not interested in a whole block but I would be interested in some cells. I'm also in Toronto.

Also looking for one of these.

Anyone have the software to program the controller?

Sent you a PM

Is the controller that comes with the motor capable of variable regen?

Thanks! Funny, I was gonna PM you since I got it from you but decided to make this thread instead.