Quote Originally Posted by a64pilot View Post
I'm sure you guys have heard this already but in case you haven't Lipo, or LI-Ion batteries have a very high power density which makes them small and powerful, but they have a nasty habit of catching fire when being recharged, as a model airplane flyer we have them catch fire more often that average as physical damage is one thing that may cause them to go off, so I have learned the hard way, they burn like a magnesieum flare, really hot. It's prudent to charge your batteries in a fireproof container of some kind, ceramic flower pots and corning ware comes to mind for smaller batteries, airplane hobby shops even sell some kind of fire proof plastic bag. when travelling, the bathtub if it's an old fashioned ceramic one is a good place.
Just don't trust the things, even the ones in your cell phone and your laptop.

Lithium phosphate batteries do not burn and provide the same amount of power/wieght ratio, they use these alot in large model aircraft...hopefully soon we will see them being used in the diving industry to help prevent some of these accidents.