I tried what Bradley suggested because it really seems easier than to solder the new battery to the iPod circuit board, which is really tiny. Still I couldn't do it. The battery pads are very fragile and I had an hard time folding the leads and the battery circuit board so that it looked the way it originally was. This was the part where I failed because afterwards I wasn't able to insert the battery plus the iPod circuit board inside its case again and ended it breaking it.