Search found 32 matches

by Spongeworthy
May 14 2018 9:51pm
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 709
Views: 127531

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

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...
by Spongeworthy
Apr 05 2018 3:10pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

Yeah I emailed him before posting, just wanted to see if anyone had a solution before I mailed it back to him.
by Spongeworthy
Apr 04 2018 7:33pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

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?
by Spongeworthy
Mar 31 2018 2:50am
Forum: Battery Technology
Topic: Buying genuine 18650 batteries
Replies: 5
Views: 662

Re: Buying genuine 18650 batteries

ru.nkon.nl
by Spongeworthy
Mar 25 2018 1:22pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

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.
by Spongeworthy
Mar 24 2018 6:53pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

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-nano-tech-...
by Spongeworthy
Mar 23 2018 11:20pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

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...
by Spongeworthy
Mar 17 2018 7:15pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

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
by Spongeworthy
Mar 17 2018 1:42am
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 28447

Re: BOSS LEVEL CUSTOM SPOT WELDER

Anyone have any success spot welding 0.2mm with 3s 10c 16Ah or around 160A?
by Spongeworthy
Feb 19 2018 9:53pm
Forum: Items for Sale - New
Topic: [SOLD] 18 FET 4110 CAv3 Programmable Sinewave Controller - $140
Replies: 2
Views: 375

Re: 18 FET 4110 CAv3 Programmable Sinewave Controller - $140

boisrondevens wrote:
Feb 19 2018 9:41pm
us or cad?
USD, I'll update the OP.
by Spongeworthy
Feb 19 2018 7:30pm
Forum: Items for Sale - New
Topic: [SOLD] 18 FET 4110 CAv3 Programmable Sinewave Controller - $140
Replies: 2
Views: 375

[SOLD] 18 FET 4110 CAv3 Programmable Sinewave Controller - $140

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...
by Spongeworthy
Oct 17 2017 3:08pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1605
Views: 384867

Re: Homemade Battery Packs

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...
by Spongeworthy
Oct 13 2017 6:06pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1605
Views: 384867

Re: Homemade Battery Packs

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...
by Spongeworthy
Oct 13 2017 2:50pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1605
Views: 384867

Re: Homemade Battery Packs

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 conductive mass t...
by Spongeworthy
Oct 13 2017 6:33am
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1605
Views: 384867

Re: Homemade Battery Packs

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.
by Spongeworthy
Aug 25 2017 12:05am
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1169
Views: 179648

Re: Compact Field Oriented Controller, ASI + Grin, limited r

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...
by Spongeworthy
Aug 24 2017 3:23pm
Forum: Battery Technology
Topic: 18650 Cell Source
Replies: 46
Views: 4543

Re: 18650 Cell Source

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
by Spongeworthy
Aug 04 2017 12:55pm
Forum: Battery Technology
Topic: 18650 Cell Source
Replies: 46
Views: 4543

Re: 18650 Cell Source

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....real pro's ...
by Spongeworthy
Jul 12 2017 7:11pm
Forum: Battery Technology
Topic: 18650 Cell Source
Replies: 46
Views: 4543

Re: 18650 Cell Source

Any Canadians order off nkon? Any surprise fees when the package arrived?
by Spongeworthy
Jun 02 2017 7:36pm
Forum: Items for Sale - Used
Topic: Tesla battery blocks
Replies: 7
Views: 1873

Re: Tesla battery blocks

Not interested in a whole block but I would be interested in some cells. I'm also in Toronto.
by Spongeworthy
May 09 2017 6:35am
Forum: Items Wanted
Topic: *Wanted* Grin PhaseRunner
Replies: 5
Views: 654

Re: *Wanted* Grin PhaseRunner

Also looking for one of these.
by Spongeworthy
Sep 27 2016 10:46am
Forum: Motor Technology
Topic: "Edge" DD hubmotor, 1500W, 35mm, Al core
Replies: 145
Views: 16489

Re: "Edge" DD hubmotor, 1500W, 35mm, Al core

Anyone have the software to program the controller?
by Spongeworthy
Sep 11 2016 4:05am
Forum: Motor Technology
Topic: "Edge" DD hubmotor, 1500W, 35mm, Al core
Replies: 145
Views: 16489

Re: "Edge" DD hubmotor, 1500W, 35mm, Al core

Is the controller that comes with the motor capable of variable regen?
by Spongeworthy
Aug 31 2016 7:47pm
Forum: Battery Technology
Topic: Bestech 21S HCX-D131 Charging pad
Replies: 3
Views: 278

Re: Bestech 21S HCX-D131 Charging pad

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