I want to buy a spot welder to make battery packs. Many of them are $80 to $100 on eBay and amazon. Some of the listings say that they are "not applicable for pure nickel strips". Other listing do not say this. Do some of these spot welders not work with pure nickel strips? How can I tell if they will work with these strips?
Battery pack spot welders
- Thread starter saladsack
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Overclocker
Flashlight Enthusiast
well there are pure nickel strips and nickel-plated STEEL strips. steel has higher resistance and may corrode over time
spot welding is a resistive process so it's more difficult to achieve a good weld w/ pure nickel. requires more amps which the welder may not be able to supply
what kind of packs are you going to build?
spot welding is a resistive process so it's more difficult to achieve a good weld w/ pure nickel. requires more amps which the welder may not be able to supply
what kind of packs are you going to build?
18650 8 series, how many amps are required for pure nickel .1mm?
This is the unit I bought and I have successfully made spot welds using pure Nickel .006" (.15mm) tabs. The power and pulse levels need to be almost maximum to do the .006" tabs. Less power for .004" tabs. I wouldn't buy anything with less power.
https://www.joyfay.com/2-in-1-spot-welder-soldering-welding-machine-709a-51547-51547.html
https://www.joyfay.com/2-in-1-spot-welder-soldering-welding-machine-709a-51547-51547.html
Overclocker
Flashlight Enthusiast
you planning on buying one of those sunkko welders that look like they came from the 70's? many people seem to have problems w/ those. what i use is a little gadget that hooks up to a large 12v battery. it basically delivers two timed "shorts" using a microcontroller and a MOSFET bank. i can't refer you to it because it's been discontinued. but i think there are some newer ones based on arduino. just look around
.1 nickel shouldn't be hard to weld. i use 0.15 for higher amp packs
.1 nickel shouldn't be hard to weld. i use 0.15 for higher amp packs
Overclocker
Flashlight Enthusiast
made by a guy in croatia but he stopped making them. the 12v 3s pack powers the circuit.
made by a guy in croatia but he stopped making them. the 12v 3s pack powers the circuit.
I can't get the image to load. Can you try it again?
Here's the Arduino welder I just recently got - actually, I got Vers 1. I see this is V2.
https://www.tindie.com/products/KaeptnBalu/diy-arduino-battery-spot-welder-v2-prebuilt-kit-/
What foot switch do you use Overclocker?
https://www.tindie.com/products/KaeptnBalu/diy-arduino-battery-spot-welder-v2-prebuilt-kit-/
What foot switch do you use Overclocker?
I actually ordered it just before I got the Joyfay Sunko spot welder. Consequently, I have not set up the Arduino unit. It's too easy to use the Sunko unit.
Probably not. Changed my mind. No longer want to sell it.
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