Thanks Aerocal for the support... tinning the cells, 2 seconds is usually all it takes, joining the straps 2-3 seconds per cell using a good quality soldering iron with a heavy tip... these a123 cells are pretty robust inside... there are images on the web where someone dissected a cell, and the connections inside at the ends are fairly substantial, its the plastic insulator disc inside at each end you have to be careful not to overheat.
As you say, its for the individual that knows how or has experience with... not everyone has the skill, but once you have done the first one, you get the feel for it... you can always practice on some old cells first.
We'll leave well enough along and move on with the subject at hand... there is a battery forum to discuss this in.
John M,
Last edited by John_M_; 10-03-2015 at 08:27 PM.