Right now I have a Universal Weller 140/100 watt Dual Powered Iron. Would this be too much heat to apply to the cells? Unfortunatley Weller does not make a chisel tip for this particular Iron.
If that is a trigger pistol grip iron you could probably take a piece of large diameter 12-10guage housewire,strip the insulation off of it and wrap it around the tip of the iron to make a better temporary tip to solder with. After you are done just cut it off and toss it.