This is why you don’t buy batteries off AliExpress.

Remember when hoverboards were quickly taken off the market because they kept exploding? The reason for this was that some of these hoverboards had defective parts that caused the batteries to be overcharged, thus setting them on fire.

What was lost in that story is that this can happen to basically anything that has a battery, which, today, means probably 90 percent of everything you own. We’ve already seen how bad this can be when it’s something simple like a phone, but if you’ve got a whole power bank, the resultant explosion is likely to give you a pretty bad burn, as you can see in this video.