The spots in purple were where I made the bridges, with copper sheet.
I tested each battery one at a time and the two marked in Red showed voltage leakage, but the third one showed correctly, with no voltage with the switch off, so it's got to be something about the two.
OL: are you saying you did that single-cell testing on your initial assembly with the bridges (before tearing it down for pics), or have you re-assembled the carrier at this point?
I do not know, now it works. As I said, I removed the copper film below the areas I marked. All I can think of, if that the current was jumping through the layer somehow, but that's hard to believe. Once I removed the copper under the top coat and put everything back, it works, but I can't give a definite reason for the change. All I did was make sure that there was nothing in the path of the jumpers and nothing close to the spring. That area around the one spring was cleared away, because that pad is smaller than the other two. It was a positive pad and the others were negative. The spring was larger than the pad, but the area around it was coated. It shouldn't have mattered.
LMAO I seriously can’t stop laughing, that is just INSANE!!! Wow, would love to see that in person. Very good work, really hope the owner is happy, I know I would be!
OL, that is insanity! :Sp I love it. Looks like it could double as a BBQ grill. Might want to wear some sunglass while testing, just to be on the safe side.