[MetalMan]

If the "bars" are not battery bars, but strips of nickel that are welded on, then you have to cut them off. But since you labeled them as "bars", I assume that that's what they are. If you haven't already, put some solder on the 100watt gun before you try to unsolder the bars. If that doesn't do the trick, then you are going to have to ask Maxamps what's going on.