RC F22 Raptor EDF Jet with battery about to burst

Here is a cool little video featuring a nice F22 raptor RC EDF Jet.  The video is high quality, but there is a little bit of a problem with his battery. You can see at the end of this video the battery is bulging and looking like it is about to explode.

You can see after the flight how he mentions that the battery is super hot, and just by looking at it you can tell something is wrong.  Haha I don't know if i would be holding that thing with the way it's all puffed up like that.  Other than that its a cool video.  Thanks Ali

RC F22 Raptor Twin EDF Jet 2nd Beautiful Flight from Ali ShanMao on Vimeo.

Tags: battery, bulging, burst, ducted, EDF, explode, f22, fan, flight, hot, jet, plane, R/C, raptor, scary, video