Has anyone here ever tried using one of those battery operated Cold Heat soldering tools? I got one as a gift a couple years ago and for the life of me cant get it to work worth a darn. I don't know if it's me, the tool, or the solder that comes with it but I can't get it to flow. Tried to solder my track joints and it would just ball up and fall onto the ballast. Is there something I'm doing wrong or are they just junk and I should get a real soldering iron? If so what do you guys recommend for a cheaper one. I don't solder that much so I don't want to go overboard.