On Fri, 17 Sep 2010 22:52:38 -0700, isw wrote:
Google around and you can find references to building a simple
spot-welder for batteries -- check the RC model airplane folks.

Hi Isaac,

Welding the tabs without destroying the battery the biggest gotcha so
this home made battery tab spot welder DIY idea is great!

The Poor Man's Battery Tab Welder
http://www.philpem.me.uk/elec/welder/
http://www.rcgroups.com/forums/showthread.php?t=763308

Build your own CD battery tab welder for $100
http://www.candlepowerforums.com/vb/...d.php?t=179937

DIY Capacitive Discharge Spot Welder, AKA Battery pack maker
http://www.geekzone.co.nz/MrWestie/7032

How to hack a dead laptop battery
http://www.wonderhowto.com/how-to-ha...attery-250860/