You know, I'm not sure on that. I only use the magnets for charging purposes, but I read somewhere that IOS shipped their JM05 / King Kong combo with extra magnets - here's a picture from Foy's review:
These look wider and flatter than the rare earth ones I recommended. However, I can tell you that the r.e. ones are pretty hard to move; I can't remove it from my battery without using needle nose pliers.