They may not. I don't know for sure. Just be sure to use Deans or Traxxas connectors, or the EC-3 connectors if that's what they have. ANYTHING but Tamiya-style Molex connectors.
Soldering isn't that hard to master. The key on battery wires is having a good iron of probably 35 watts, and a thick enough tip for enough thermal mass, to make a good, hot, QUICK, solder joint, and is allowed to cool unmoved so it ends up nice and shine-y. If it ends up dull and crackly looking, it's a "cold" solder joint, and you should start over. And one of those "third hand" jigs are great. Just practice a little on some other stuff before you work on your RC stuff. There are some good videos on how to solder on youtube, I'm sure.
Last edited by EXT2Rob; 01-15-2014 at 09:53 PM.