gwhy! said:
If you don't what to risk having a battery fire then don't use any kind of battery, as any battery can, and do cause fires.. never think that one type of chemistry is safer than another as this will lead to problems , treat all chemistries with the SAME respect or you will get it in the backside at some point.
This is untrue and dangerous advice, with all due respect (I like your builds by the way). Treating all materials the same because they are molded into the same device leads people to saturate in their attention to real danger. Note that US airports were on "code orange" alert for better than 10 years after 9-11. This was ridiculous. People simply can't treat every battery as a signifcant potential fire hazard. How many batteries are in your house right now? In your fire (smoke) detector for goddsake.
Posting from another thread:
No, battery type is not irrelevant. LiCo oxide decomposes at a much lower temperature than any other lithium chemistry, 150 deg C. LiFePO4 decomposes at 310 deg C. Then atmospheric oxygen is not required to support combustion and the fire is self-sustaining, catalytic, and very hot. It is simply not true that chemistry is irrelevant. All batteries can burn. Some much easier than others. It is a fact. For the above, see Journal of Power Sources, Volume 226, 15 March 2013, Pages 272–288. But we have to disabuse ourselves of the notion that "all batteries burn so therefore the potential hazard is equal". It just isn't. All alkanes burn also but I am a lot more careful with gasoline than kerosene for a good reason.
RC LiPO is potentially more hazardous. Use it if you like but use it with appropriate care or use a different battery. Yes, a car battery can cause a fire, but at what frequency per installation?