The bKey is an external iPhone battery small enough to fit on your keychain

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These days, most of us have no shortage of extra batteries that can juice up our iPhones and iPads in a pinch. The problem is that none of them are there when you actually need them: you’ve forgotten them at home, or they’re in that other bag.

The bKey is a new Kickstarter project that aims to make that problem a thing of the past by shrinking down an external battery to the size of a key. And if you’ve got a battery on your keychain, you’ll never be without a charge.

The bKey is an external iPhone battery small enough to fit on your keychain

Here’s how bKey pitches their product on their Kickstarter campaign, which has already raised over $57,000 USD:

Smartphone battery cases are bulky and can block the earphone jack. Small stand alone batteries are often too big for your pocket and require a cable to make them work. bKey easily fits in your pocket and everything is built right in to charge it and use it. You never have to remember to bring a cable or annoying adapter tips with you again.

Of course, it’s not a huge charge: just about 270mAh, which is roughly enough to charge your battery around 20%. But if what you need is just a little more juice to get you to the next outlet, or through a phone call, the bKey is a smart idea.

The bKey will come in versions compatible with 30-pin or Lightning iOS devices, or micro USB for you Android users. And the price is surprisingly affordable: you can preorder a bKey for yourself now a little under $23, with bKeys shipping in December.

About the author

John BrownleeJohn Brownlee is a Contributing Editor. He has also written for Wired, Playboy, Boing Boing, Popular Mechanics, VentureBeat, and Gizmodo. He lives in Boston with his wife and two parakeets. You can follow him here on Twitter.

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