Lithium batteries DOES NOT explode, they are not a bomb. Yes they can fire but is very uncommon, the reaction of the lithium with oxygen is the one that produce a fire, this batteries are sealed and even if you break them appart you have to be in a very high oxigen condition, ive being using lithium batteries LiPo since they show up in the market in my RC planes and helicopter, more or less 10 years ,, ive being thru tons of craches and never got a fire on a lithium battery, the only one i get a fire is the one i shoot with my BB rifle even after that i try to fire some more shooting lots of BB and nothing.
Even the cheapest ego charger have protection so they going to burn before the battery,,Im not telling you will never got a fire but could 1 in 1,000,000 chance.i charge my 2 egos and me 2 efest 18350 overnight even some friends here told me to not do it..
If you dont feel you are safe go to ebay search for a LIPO SAFE BAG put your evic inside and go to sleep.
http://www.ebay.com/itm/RC-LiPo-Bat...adio_Control_Control_Line&hash=item4aacd2af47
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