LONDON -- If you don't pay much attention to where you store your e-cigarette batteries019 Archives well, this video will probably make you change your mind.

SEE ALSO: Intense video shows a vape exploding inside a dude's pocket

A CCTV camera in a shopping centre in Leeds recorded an e-cigarette battery exploding in a man's pocket as he casually walked through a shop with a friend.

CARD ID: 139010

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The man, who was left with slight injuries, had spare lithium-ion batteries for his e-cigarette loose in his pocket.

According to West Yorkshire Fire and Rescue Service, the short circuit was caused when one of the batteries came into contact with a metal item in the pocket -- keys or coins.

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It is also possible that two batteries shorted one another.

“This footage clearly shows the dangers of storing batteries alongside any metal objects, be it keys, coins, or even your phone if it has a metal case," Jamie Lister, Fire investigator, said.

“This is not the first time we have seen injuries caused by a lithium-ion battery exploding whilst being carried in someone’s pocket. We really want the public to understand the risks which can be easily avoided. “There does not need to be a fault with the battery, the problem is the incorrect storage of the batteries.”

People, beware.

CARD ID: 139009