Spot welding batteries tips & trix

Some tips and trix for spot welding your 18650 cells
-- More information below! --

In this rather long video I go through some basics I have learned while doing quite some spot welds during my days. I have most likely forgotten some and feel free to comment and add them down below!

Spot welding doesnt have to be tricky but its always good if you know what you are doing.

Common mistakes is lack of pressure or to hard pressure. It can also be way off when it comes to enough time/pulses or using a way to week machine.

Dont forget to check out my other spot welding videos!

All Ebay links below:

-------------------------------
Affiliate links (Using them helps me with this channel)

Become a Patreon? Then use my affiliated link below!
Manage your youtube videos like I do? Use below
---------------------------------------
Links
To my site and current solar layout:

Dont forget to visit Peters youtube channel!

----------------------------------------
Want to help me out or if you appreciate what i do?

--------------------------------------------------------------

[johannmeiring]

One of the best tutorials on spot welding . Thx a lot.

[gatorwing]

There are two things I do for perfect spot welds. First I run used electrodes across a piece of fine emery cloth.
Since I am also a Tig welder it is most important that there is no burn oxidation on the electrodes or if so you get an uneven current path or poor weld.
I also know that we can only spot weld with the electrodes on one side.⚠
I thought about springs under the electrodes for equal pressure.
I found a much better workaround.
I place the battery pack between a loose fitting wood jig to keep cells vertical. Loose enough so no binding in the jig when finger pressing on the top of the pack.
Under the pack I have a small 3/8" strip of plastic foam similar to the black pads found in some equipment cases. (I don't remember what old case they came from). Do not use foam rubber or styrofoam.
When I press the electrodes on the nickel strip it allows the pack to shift a tiny bit giving almost equal pressure on each electrode.👌
This gives me excellent welds under both electrodes without one with great penetration and the other almost none. 🧡.
A quick scratch across cleaning strip and on to the next weld.💥

[madcow]

Thanks so much for this. I half-assed a few bad practice batteries to get an idea of how spot welding works. I now know some of the mistakes I was making. I didn't even know the spacing between my electrodes could be adjusted. Very helpful.

[sreekumarUSA]

Thank you, very much. I learned that a space between the electrode must be 2~2.5mm for optimum welded joint. Appreciate your advice.

[sreekumarUSA]

I have an older spot welder Sunkko 788H, which doesn’t have the remote handle. Due to this reason, I find it very very difficult to spot Battery Banks eg: 3S5P and so on. Your demo is prompting me to procure a handle, like yours to ease the job. Thanks again.

[sathyakumar]

Thank you for the very informative video about spot welding with fuse wire
and How spot welding works

[solofrnndz]

Thanks a lot for the tips and for taking the time to make this video

[solosailor]

Very good overview of ALL the factors, with the physics! Thank You! Also good IPM (Information per minute)! I was intently listening and relating your info to my project in a Flow; EXCELLENT timing on your part! Or is that Pace...OK, just call it IPM (yes, I'm building a spot welder from my "junk box" parts, so results WILL 556, 12v 10A batt, trickle charged, )

[jancorey]

Thank you for a great, informative presentation.

[oldtimeengineer]

Yep you said it perfect. That is what I did before I started mine thanks for showing

[fhehle]

Nice tutorial. Thank you for the good work.

[PnguinDarknes]

Hey thanks a lot man! Very helpful and informative. I appreciate you for saving me from starting a fire lol

[garolittle]

Very good video. Thank you for making this.

[garryspence]

My spot welder is collecting dust as my first experience did not go so well.  Maybe I will try again  doing the fuses on 1 pack.
As usual Great Tutorial!!!

[kolik]

Thank you so sooo much!! realy helprfull. At the begining of video I was not sure if I will be okay concerning to 16 minutes... BUT it was well created video which save's me hours of finding out, whyy again my welding is not fine tuned :) Thanks

[miranlyan]

it was so useful and so helpful thanks

[voort]

Hi Daniel, i would love to see how you build the cheap ass spott welder ;)

[dwulkan]

Very good tutorial! I learned a lot from this about adjustments that I did not know I could make. I really appreciate that you made this video. Thanks

[welshnutterz]

Great video thanks. I'm about to buy a 709a spot welder, do you rate it well? Thanks

[dhananjaykadam]

Thanks for nice tips. Please inform what size of inside spring you are using? Dia, no. Of turns & length. Regards