Yeah... I heard some talk about this so I hit the web looking for info. Since all my cells are IB4200's... I figured I should see what was going on. I went to SMC's site and they said they no longer import the IB Cells, due to the danger they pose. I read a couple of posts in a forum that google popped up for me and folks are saying they explode violently. Not just one cell all 6 at once. So I figured I would see if any of you guys are having any issues.