The title of this thread should be, "BATTERIES are dangerous."
Inherently, all batteries are vessels for storing electric energy and are by nature VERY DANGEROUS. Too many people overlook this fact of racing and playing with electric powered cars, boats, helicopters and airplanes.
The simple truth is that NiMh and NiCd have always been and are still just as dangerous to own, store, charge and use as Lithium Polymer type packs. Ever see a NiMh cell EXPLODE or shoot across the pits and lodge into a wall, table or worse?
I am still amazed when people spontaneously realize that stored electricity is dangerous, in any format. Take care of your batteries, store them properly (according to the manufacturer's suggestions) and treat them with the respect they deserve.
LiPos are not any more or less dangerous than the batteries under the hood of your car, in your cell phone or in your laptop. They just pose different risks and require different maintenance. They are certainly not any more dangerous than the batteries we have been using in R/C cars for the last 30 years.
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