If you are wondering do hoverboards still blow up 2020, the answer is yes, but the number of explosions has been limited. Amazon has recalled hoverboards that are not deemed safe. The UL2272 certification has also reduced blowing up incidents.

As with bikes, skateboards, and scooters, wearing protective gear when riding a hoverboard can prevent serious injuries. Unfortunately, hoverboards pose other risks. They can spontaneously combust, causing fire damage and personal injury 

Fire and explosion hazards were the leading cause of serious injuries involving hoverboards, created by companies including Sonic Smart, Smart Balance, iRover, and Vecaro. There have also been reports of serious injuries involving fractures, broken bones and brain injuries