have you so many devices at home that have lithium ion inside of them. abby: you see this story and you say that could have been me. >> it could be you. number one cause of this is a defective battery. that comes from a variety of things. it comes from buying cheap knockoffs, and it also comes frun proven brand names that we're not familiar with that tend to make less quality items. abby: what can you do, kurt? >> what you can do is take preventative things. don't leave something plugged in while it's charging or while you are storing it also, don't ever -- if you see a swollen battery or you dropped it and you know that the battery is damaged, throw it out. just stop using it and dispose of it. and then never ever when you leave it in a hot car that causes the battery to do bad things and it can damage it so that it later creates a problem. abby: you said don't pack things so tight into your carry on bag or backpack that can cause a problem. >> that's a concern as we consider how to handle this new threat with laptops on