Yes, according to reports batteries are causing such fire catching problem. That's why some hoverboard company have to recall their products. Recently I found that for confirming the safety of hoverboard users a UL standard certification applied for all suppliers. It will verify the hoverboard products of supplier and approve it that it's safe for using or not. Few stores like "Betterscooter" able to achieve such certifications.
Jonathan
My friend just bought a Razor Hovertrax self balancing scooter. I've read a lot online about these things posing fire hazards with the lithium ion battery. My question is, should he worry about the battery exploding? Found a helpful Hoverboard Fire Safety Review but looking for a little more expert info on the topic...