Endless Sphere

That's really good method of assembling the pack

Welders still available, ready to ship right away! :thumb: I'm ready to buy a spot welder, I just need a little bit of convincing why this is a better option than a sunkko 709a? which would set me back around UK£150 (I'm based in the UK) also whether it's similar/higher/lower spec than the other on...

Welders still available, ready to ship right away! :thumb: I'm ready to buy a spot welder, I just need a little bit of convincing why this is a better option than a sunkko 709a? which would set me back around UK£150 (I'm based in the UK) also whether it's similar/higher/lower spec than the other on...

Welders still available, ready to ship right away!

Both options should work fine, but bolting fets down is much more convenient, for installation and also for potential repairs. Also it's a lot less messy, and you're not stressing the fets with soldering.

Yeah, if you ask me the other option is better

Yes, they should be slightly better, but are more costly.

Hi guys, please see new update in first post, I have dropped prices by 20 USD for these few remaining welders! UPDATE 22 may 2019: Closing sale - 20 USD price drop for assembled and DIY kit! New prices: Standard kit - includes assembled welder, electrodes, and footswtich - 140 USD - in stock DIY kit...

Well, I use these:

https://www.verical.com/pd/infineon-tec ... bf-2016823

Please share if you do something like that lol

hello riba. is it possible to modify the welder to handle around 2 times the current for welding copper? perhaps using larger or more fets? Hi, I have never tried myself, but I guess it could be possible. Maybe stack two welders, and use one as a master providing the gate signal for slave FETs? BTW...

pr0ton wrote: ↑

Apr 25 2019 4:53am

Hi, I have interest in a DIY unit, do you have one available? You can PM me of course for the order processing, I hope I'm still in time cause they look really neat, being able to weld copper strips!

Hey, you have PM!

Hi every on I finished my first "big " battery pack 14s28p Near to 1600 spot welding. No bug no problem with my jpspotwelder But I need New copper tip can you say where I can found New one? Hi, thank you and I'm really glad you like it! Unfortunately I just went out of copper tips, but they are mad...

Hi everyone! I'm excited to tell you that I have the welders ready to order and ship again. However, I'm less excited to tell you that this batch which includes 15 assembled and 2 DIY kits will be the last one. It was a pleasure to have had you as a welder maker. Always kind and direct. I recently ...

I'm moving to another project, which will hopefully turn into a full time deal for me. I will post the details once I have everything ready, and I think it will be interesting for a lot of you guys here. Hmmm BMS's :wink: Nope, I would never sell BMS's even if I was pretty confident that I've naile...

Hi everyone! I'm excited to tell you that I have the welders ready to order and ship again. However, I'm less excited to tell you that this batch which includes 15 assembled and 2 DIY kits will be the last one. I want to thank everyone who bought the welder, believed in me and my product, and of cou...

My JP is certainly proving to be a worthwhile investment... this ~3.2Kwhr (252 cell) pack is already sold, and I have several more smaller packs planned for my new LMX once it arrives. :) Cheers Thanks, I 'm really glad to hear that! :) I have 3 welders. I bought the JP first. I was enticed by all ...

48v is too much. 12v is about the maximum. Consider that on mine, I measured about 3,000A during the pulse at 12v. There has been some success using gigantic capacitors and a 12v supply. The average power is not that much so the caps can get recharged with a reasonably small 12v supply. Fletcher, H...

Right now I'm using two 6v 180Ah PB batteries in parallel, and I get perfect welds. But I'm moving my bench, and don't want to use those big batteries there. I think I'm going to see some capacitors? Any advise? Think about use 5v power supply. I personally don't have experience with capacitors, I ...

I was thinking about use some server Power supply in parallel. Do you think they can handle? If not, what about use 48v as a DC source? I can get a lot of power supplys for free they are 48v 50A, 2400w... I can parallel them, bit not sure if 48v is too much. Whoa whoa whoa :mrgreen: pe_bkijv6f0 12V...

OMG, congratulations man! I never had even a slightest bit of doubt in your success

Yeah, you need DC source.

1. You can use standard 12V ac/dc adapter with 5.5/2.1 mm barrel connector (most common one), 500 mA is fine, maybe even less, but I haven' tried. It's polarity will be marked, it's standard negative outer, and inner pin is positive. There is a diode on the input so nothing will happen if you accid...

Following!

sooo... Nobody posted this:

https://www.youtube.com/watch?v=KUmlCH7bTO8

Whoa, that's really nice to hear! You are the only one from the DIYelectriccar forum that got the welder