I originally thought of building my solder-less pack with magnets, however, I went with springs.
I'd like to build a new one using magnets and then upgrade the older one to use them as well.
Which magnets do you recommend? I found this company near my home.
http://www.allmagnet.com/NdFeB-Magnet.html?CID=1
Are these NdFeB Magnet a good choice?
How big and thick should they be on the negative pole and how big on the positive one.
I am thinking of making them on the negative side bigger and flatter and on the positive side much smaller and thicker/stronger.
Also, I will put a thin copper sheet in between to make the contact. It will be narrowed somewhere at the positive side to form a simple fuse for each cell.
Has anyone experimented with such fuses before?
How thick should the copper sheet be and how narrow do I have to make it to burn out to protect the cell.
I could figure it out by try and error using a resistor and short-cutting one old cell.
What resistor should I use and after how many seconds should the connection burn out/fail?
Any suggestions thanks!