It's designed to carry enough power to charge multiple devices simultaneously.

GREENSBORO, NC -- Cold weather can drain a battery, so can taking a bunch of pictures and posting them and when you get this. Uh oh. There's a problem. And when you're out having fun, that is no fun.

The following content is brought to you by Mashable partners. If you buy a product featured here, we may earn an affiliate commission or other compensation. Never be left powerless with this ...

Get this tiny power bank for iPhone and Apple Watch while it costs just $20. Photo: Cult of Mac Deals The remarkably tiny Charge Fob keychain power bank can charge your iPhone and Apple Watch ...

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The Rorry portable charger can juice nearly all your Apple devices, grab it on sale. Amazon Portable power banks are useful for keeping devices juiced while you’re on the go. Yet, they’re sometimes ...

You don’t need a brand-new Apple Watch if the only issue is sucky battery life. What you do need is this Apple Watch keychain charger, and a two-pack costs just $32.97. That’s a 36% discount off the ...

Whether you’re a student or a professional, relying on multiple smart devices may also mean you have to carry around different gear to back them up. Chargers and external storage can be frustrating to ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › In college, the only item I needed on my keychain—aside from my house keys!—was a ...

You can never go wrong with portable power. And when your Apple Watch starts running low in the middle of your day, a timely jolt from this $19.99 Apple Watch Wireless Charger Keychain can keep you ...