thats the bad bit...lithium ion's are actually more dangerous!!
they are a fair bit more volitile than their polymer counterparts.
i proved this by blowing up both types, the li-po's just vented and caught fire, the li-ions melted the metal paint can they were in!!
E-revo 3.3 conversion, 249kv outrunner, 6s, MMM
the porthole from the noob world an here has been opened!! that's how i got in.