According to Business Insider, British officials are warning hoverboard fans against buying cheap machines that might come with battery packs that overheat and can explode, unsafe plugs that lack a fuse, or instructions you won’t understand, like this one: “Get off the bus, get off before you stop intelligent drifting scooter balance state, one foot down, the other one foot in the left drifting scooter again.”
Source: Great Scott: Officials warn that cheap hoverboards can explode