Search found 927 matches

by rojitor
Nov 21 2018 3:35am
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Still a great welder. Working fine both solder and welder and my one and only reliable device.
That's my experience so far.
by rojitor
Nov 03 2018 7:39pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Yes they are in stock. Lee always has some units ready to ship.Check the first post under "disclaimer". Instructions there.
There are other welders at the sale section if you wanna take a look.
by rojitor
Nov 01 2018 5:06am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 19415

Re: Farfles Electric Ultralight.

:bigthumb: this project is so amazing. You have done an impressive job.
by rojitor
Sep 21 2018 5:59am
Forum: Items for Sale - Used
Topic: light electric skateboard [SOLD]
Replies: 1
Views: 314

Re: light electric skateboard [SOLD]

Sorry. This board was sold many days ago. I forgot to update. I apologize.
by rojitor
Aug 25 2018 3:24pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Yes. You can weld nickel for parallel and copper on It for series. That can be done.
by rojitor
Aug 25 2018 2:17pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

No. Copper on copper makes poor welds.
Wide tabs is the way to go.
by rojitor
Aug 25 2018 5:05am
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

My source is good but they sell kilos.


http://s.aliexpress.com/qUFJVjii
by rojitor
Aug 24 2018 7:25pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

The courtesy strips sent by lee are 0.1 plated. You will destroy them on 4s. Test them with very low settings. For any question about how to use the welder you can watch this video 75XBlGjcBVQ For 0.1 copper i use 7-8ms X2 at full battery, as soon as the voltage drops i rise one ms and make a few mo...
by rojitor
Aug 24 2018 1:52pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Welcome to the club. So you have gone straight for 4s... Go slowly. Some testing is recommended as 4s has different flux times.
by rojitor
Aug 17 2018 7:44pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

I did a flat pack for electric skateboard. 10s3p samsung 30q waterproof 60amps shared port bms
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by rojitor
Aug 10 2018 9:51am
Forum: Items for Sale - Used
Topic: light electric skateboard [SOLD]
Replies: 1
Views: 314

light electric skateboard [SOLD]

[youtube][/youtube]I have for sale a very light skateboard. It's been used very few times, i have many other builds so i want to sell those i barely use. It has a very high performance battery welded with copper. Made with sony konion vtc6 6s2p and 60 amps bms. Fvt 120amps esc. Speed deck. Maytech v...
by rojitor
Jul 15 2018 10:02am
Forum: Battery Technology
Topic: yet another solderless DIY battery pack via NIB's
Replies: 225
Views: 56779

Re: yet another solderless DIY battery pack via NIB's

Aluminium is extremely difficult to solder.
Also is not magnetic.
by rojitor
Jul 11 2018 2:22pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

I did a second part of the pen video. Now with interchangeable tips.
by rojitor
Jul 01 2018 7:04pm
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1572
Views: 162273

Re: Thread for new battery breakthrough PR releases


Sorry... No english. I guess they will make some as soon as they are done developing and start mass production.
by rojitor
Jul 01 2018 6:12pm
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1572
Views: 162273

Re: Thread for new battery breakthrough PR releases

https://www.grabat.es/es/quienes-somos A branch of graphenano ( the spanish company that made world's first graphene ship) named Grabat is developing graphene batteries. There's very few information so far but the official news is that Chint (chinese energetic multinational) Has bought 25% of the c...
by rojitor
Jul 01 2018 5:25am
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Copper needs 4s. 3s has no effect at all on It. I use Two 4s nanotech in parallel. The reason for wide strips is that copper on copper makes poor welds, also i like the wide tabs method, series and parallel at the same time,less work and much better conductivity and heat dissipation. Win win. Those ...
by rojitor
Jun 27 2018 8:15am
Forum: E-Bike Technical
Topic: Is Lyen still around?
Replies: 7
Views: 365

Re: Is Lyen still around?

by rojitor
Jun 26 2018 4:18am
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Nice video ty. Yes i think it could handle 0.12 because i did 0.2 after all but i do not recommend going beyond 0.1 This machine was not designed to weld copper but nickel. Pushing beyond the limits will kill the fets in no time. The Heat and difficulty at 0.1 is considerable. I didn't test It mysel...
by rojitor
Jun 25 2018 8:53pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

I guess you didn't visit this thread for a long time. Yes i welded many copper batteries. That one is 0.1
I succeded welding 0.2 but it's too dangerous for both the machine and user.
0.1 is perfectly doable with the Boss welder.
by rojitor
Jun 25 2018 6:25pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Image
I did a welding pen and i taped it. I hope it helps people to do their own welding pens.

by rojitor
Jun 25 2018 6:19pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

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Well after my failed experiment i did my copper battery as usual, this time i didn't tape it as it is prety similar to another build. Nothing new to explain so no point for a video.
by rojitor
Jun 24 2018 3:41pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Great! A build with video. I will add It at the builds post on the first page.
by rojitor
Jun 19 2018 12:15pm
Forum: Battery Technology
Topic: BOSS LEVEL CUSTOM SPOT WELDER
Replies: 373
Views: 29617

Re: BOSS LEVEL CUSTOM SPOT WELDER

Well i have been sick and didn't talk about It anymore. The experiment failed. The nanolayer of carbon dissolved in the water so i don't know how long It would protect in real life conditions the tabs. It can be improved by applying more heat with the torch but since the tabs are so slim the metal w...