Review on Welder Machine Battery Protable Storage by Jason King

While I can't comment on what others have done/how they have used this spot welder, I haven't had any problems. I bought this to use small batches of batteries for vintage/retro computer restoration. I took it out of the box and immediately plugged it in to charge it to full capacity before attempting to use it. For the light green pack above, I used it at setting 4 in manual mode, held the sensors vertically down over the nickel and battery cell, and pressed the button once. I only give four points for my personal "feel good". I had no problems with stuck probes, connection problems (nickel strips 0.15x6x50mm) and wiring problems.