That's what I originally thought and figured that by buying this battery (brand-new) for the JP welder, I would be all-set:
OptimaYellow Top Deep Cycle Battery, Group Size 31T, 900 CC.
https://www.optimabatteries.com/en-us/y ... le-battery
Manufacturer claims an Internal Resistance of 0.0025
But no cigar: electrodes continued to stick when using the 0.20 nickel.
Then, I built my first MOT using this transformer:
SAMSUNG DE26-00126B MICROWAVE TRANSFORMER SHV-U1870D *B01
Then, added a second MOT with secondaries in parallel, then a third one (all 3 identical, of course) and still no difference.
Even tried a Harbor Freight 220 volt spot welder transformer (tested 3, 4, 5 and 6 turns on the secondary) then two of them in parallel.
All along, the powerful CD 800 Watts/sec, with plenty of juice, was doing the same thing.
Mind you, this unit was built with three 1.070 Farad with a 0.001 ESR at up to 25V. (And I confirmed these specs when I received them)
Enough power to blow a big hole through the nickel and the battery can if cranked high enough.
I also tried all-copper 2 AWG cable to wire my setups but saw no change
The slotted nickel strip? I tried that with no luck, unfortunately.
So, recently, I bought one kWeld unit and though, electrodes are sticking a little less, I can't say I have resolved the issue.
In summary, I can get a darn good nugget with all my welders using the 0.20 mm nickel, but the doggone electrodes stick big time.
Not so with the 0.15 mm thick one and I find hard to believe the difference of .005 ONLY is the reason for all this trouble.
Given all the things I have tried, buying a known-good nickel material is the next logical step.
At least, it would eliminate this as the problem's source.
Hopefully, someone can point me to a trusted vendor. I have tried 2 on Aliexpress (a while back) and those strips have kept me busy for a long time, trying to eliminate the stickiness.
Thanks for reading this mini-book