JP spot welder

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tomjasz   1.21 GW

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Re: JP spot welder

Post by tomjasz » Dec 21 2017 1:35pm

riba2233 wrote:
Dec 18 2017 1:35pm
We are taking a restock/holiday break until 15 jan 2018! Happy New Year to everybody!
All the best for a happy holiday break. And a Happy New Year to you and yours!
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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riba2233   1 MW

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Re: JP spot welder

Post by riba2233 » Mar 17 2018 6:21am

Hey guys, some news, please see the new update on first post. We are restocked and ready to ship in usual pace! :)

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tomjasz   1.21 GW

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Re: JP spot welder

Post by tomjasz » Mar 17 2018 10:19pm

Great news! Still plugging along with repairs with your welder powered by recycled 650A/CCA AGM. A great score. It replaced a Sunnko 799. An unfortunate China welder experience, for me, while others fared well.

On my the bench that monster AGM is no problem. I keep it and a battery conditioner on 24/7/365. All good, no Lipo sweat.

You’ve always supported your products well. Thanks for several good years!

I have several welders. I can’t imagine a reason to not buy another of yours. Thanks for the support.

Hvala van,

TD
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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Kepler   1 GW

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Re: JP spot welder

Post by Kepler » Mar 18 2018 12:01am

I second that endorsement. Mine has done literally thousands of welds and worked flawlessly.

Good luck with the continued sales.
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riba2233   1 MW

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Re: JP spot welder

Post by riba2233 » Mar 18 2018 3:37am

Thank you guys for the support, I really appreciate it! :)

graggan   1 µW

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Re: JP spot welder

Post by graggan » Mar 23 2018 10:22am

How do i order? :-)

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riba2233   1 MW

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Re: JP spot welder

Post by riba2233 » Mar 23 2018 12:30pm

Just send me a PM, which you already have :) 8)

rwaudio   100 mW

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Re: JP spot welder

Post by rwaudio » Mar 26 2018 12:50pm

Mine has been going strong for years (10's of thousands of welds). Switched to a more flexible car audio power cable which makes it a bit nicer to use.
Using 3S Sinopoly 100Ah LiFePO4 cells, quite degraded from use in a car, but works VERY well.
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2018-03-26_11-39-45_023.jpg

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riba2233   1 MW

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Re: JP spot welder

Post by riba2233 » Mar 27 2018 12:21pm

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

Gaffler   10 mW

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Re: JP spot welder

Post by Gaffler » Jun 14 2018 6:21pm

Anyone weld any Boston Power Swing cells using this welder? If so what settings and material did you use? (.015, .030 nickel, .010, .005 copper)?? I am trying to build 14s5p battery packs for my kids electric scooters. I have 4 cases of these cells and have heard they are very difficult to spot weld. Thanks for your time..
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Screenshot_20180205-135727.png
Boston power swing cell I'd like to use
Screenshot_20180205-135727.png (183.25 KiB) Viewed 971 times

sergiu71   1 µW

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Re: JP spot welder

Post by sergiu71 » Jul 10 2018 5:37am

Hi

I sent you a PM. I think you should put any additional contact info like whatsapp, wechat, etc., and also explain better how to order and pay. Thanks.

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tomjasz   1.21 GW

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Re: JP spot welder

Post by tomjasz » Jul 11 2018 12:34am

sergiu71 wrote:
Jul 10 2018 5:37am
Hi

I sent you a PM. I think you should put any additional contact info like whatsapp, wechat, etc., and also explain better how to order and pay. Thanks.
Send a message and then finish your profile with location. Easy peasy.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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Solexelec   10 mW

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Re: JP spot welder

Post by Solexelec » Nov 06 2018 1:41am

Hi
I'm very about my jpspotwelder
I have a question
It's possible to weld fuse wire on 18650 with the spot welder?
It's possible to connect one hand welder pen?
Can you tried?

Thanks

Sylvain

destro23   100 mW

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Re: JP spot welder

Post by destro23 » Nov 12 2018 10:39am

I started using my welder and it seems I’m getting some weak welds... and they get a little stronger if I rotate the copper leads. Is my battery not strong enough? 530ca 425cca reserve capacity 75 (whatever that means) using .15 nickel at 26ms

If I get a stronger battery would it help? Or do I have to clean/sand the tips of the copper. I know I’m doing something wrong somewhere

Thanks for any input!

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fechter   100 GW

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Re: JP spot welder

Post by fechter » Nov 12 2018 12:10pm

destro23 wrote:
Nov 12 2018 10:39am
I started using my welder and it seems I’m getting some weak welds... and they get a little stronger if I rotate the copper leads. Is my battery not strong enough? 530ca 425cca reserve capacity 75 (whatever that means) using .15 nickel at 26ms

If I get a stronger battery would it help? Or do I have to clean/sand the tips of the copper. I know I’m doing something wrong somewhere

Thanks for any input!
Sounds like the battery is too weak. Is it an old battery?
"One test is worth a thousand opinions"

destro23   100 mW

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Re: JP spot welder

Post by destro23 » Nov 12 2018 2:28pm

fechter wrote:
Nov 12 2018 12:10pm

Sounds like the battery is too weak. Is it an old battery?
I bought it certified/used from autozone. It currently reads 12.94 volts and it’s been off the trickle charger for 2 days. I’m gonna try and return it for a bigger one today. This may be the issue.
What size battery are you using?

I also have a optima 1000 ca / 800cca battery in my old GTO is that to strong for this?

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Allex   1 GW

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Re: JP spot welder

Post by Allex » Nov 12 2018 6:03pm

Dont use too much pressure on the tips! 750CCA is good enough for 0,2mm

destro23   100 mW

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Re: JP spot welder

Post by destro23 » Nov 13 2018 12:03am

Allex wrote:
Nov 12 2018 6:03pm
Dont use too much pressure on the tips! 750CCA is good enough for 0,2mm
wait what? i kind of press down pretty hard on them this way the nickle strip is touching the cells very solid. is that wrong?

destro23   100 mW

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Re: JP spot welder

Post by destro23 » Nov 13 2018 12:04am

fechter wrote:
Nov 12 2018 12:10pm
destro23 wrote:
Nov 12 2018 10:39am
I started using my welder and it seems I’m getting some weak welds... and they get a little stronger if I rotate the copper leads. Is my battery not strong enough? 530ca 425cca reserve capacity 75 (whatever that means) using .15 nickel at 26ms

If I get a stronger battery would it help? Or do I have to clean/sand the tips of the copper. I know I’m doing something wrong somewhere

Thanks for any input!
Sounds like the battery is too weak. Is it an old battery?
i just returned it for a 625cca battery... i'll test it out tomorrow.

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Allex   1 GW

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Re: JP spot welder

Post by Allex » Nov 13 2018 2:52am

destro23 wrote:
Nov 13 2018 12:03am
Allex wrote:
Nov 12 2018 6:03pm
Dont use too much pressure on the tips! 750CCA is good enough for 0,2mm
wait what? i kind of press down pretty hard on them this way the nickle strip is touching the cells very solid. is that wrong?
Yes, the key is to press so you get a good contact but you cannot press too hard. If you do, your welds will be weak - you need to have some resistance to make the actual weld, this is from my experience with this thing. BIG contact area =weak welds. This is why you get better welds if you turn the leads - probably because they are sharper there=small contact area. This could of course be compensated with more pulse current from the battery.

dukestar   1 µW

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Re: JP spot welder

Post by dukestar » Nov 20 2018 1:02pm

Hello riba. Sent a PM. Do you have a link where I can buy a 12V transformer for North America that will work with your welder?

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fechter   100 GW

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Re: JP spot welder

Post by fechter » Nov 20 2018 2:52pm

riba2233 wrote:
Apr 24 2015 4:25pm

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 accidentally reverse polarity.

Here is the one I got:
https://www.ebay.com/itm/AC-100-240V-Ad ... rk:23:pf:0
US $3.82
"One test is worth a thousand opinions"

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riba2233   1 MW

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Re: JP spot welder

Post by riba2233 » Nov 20 2018 3:27pm

fechter wrote:
Nov 20 2018 2:52pm
riba2233 wrote:
Apr 24 2015 4:25pm

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 accidentally reverse polarity.

Here is the one I got:
https://www.ebay.com/itm/AC-100-240V-Ad ... rk:23:pf:0
US $3.82
Nice find! :thumb:

sevillano1982   10 µW

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Re: JP spot welder

Post by sevillano1982 » Dec 11 2018 7:44pm

hello friend.
Could I replace the battery with a modified microwave transformer?

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fechter   100 GW

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Re: JP spot welder

Post by fechter » Dec 12 2018 10:49am

sevillano1982 wrote:
Dec 11 2018 7:44pm
hello friend.
Could I replace the battery with a modified microwave transformer?
The welder circuit won't work with AC. If you had a rectifier on the output of the transformer, it could possibly work but the rectifier would need to handle over 1000 amps. I don't think a transformer would be able to supply enough current to make good welds even if you could find a big enough rectifier.
"One test is worth a thousand opinions"

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