Smartphones are the new portable gaming systems. And MP3 players, point & shoot cameras, calendars, on-the-go email machines, and social networking devices. Simply put, smartphones work hard for us. As a result, the battery drains quickly. Oftentimes too quickly.

That's why Seidio is offering up three 3,500mAh extended batteries and three desktop charging cradles for the Galaxy S III to three lucky readers.

The Goods

As stated above, we have some battery/charging cradle combos to give away. But what exactly are they?

3,500mAh Extended Battery

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If you find yourself running out of juice halfway through the day, this is the battery for you. And at 3,500mAh, this baby should nearly double your battery life. Since it brings so much juice along for the ride, it's larger than the stock battery. No worries, though - it comes with the back plate to match.

The version that we have for this giveaway is the non-NFC variant. If that's something you simply must have, you can always buy one directly from Seidio with NFC built-in.

Desktop Charging Cradle

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With that all-day battery life, you'll need a proper way to charge it, right? For that, there's the Desktop Charging Cradle. This is a sleek and practical way to juice your phone up while still being able see it. Definitely convenient for those who use their device as an alarm clock. The dock is also wide enough to accommodate most cases, so you won't need to undress your phone every night before charging it.

How to Enter

The contest is now over. Here are the winners, chosen at random:

  • Stud Muffler
  • Michael Kahmann
  • Prince Dela Cruz

Congratulations - you will be contacted for your information in the near future!

Everyone else - keep participating and stay tuned to Android Police so that you don't miss our upcoming giveaway announcements. You can follow AP on Twitter, Facebook, Google+, and RSS.

This giveaway is available to those who live in The United States and Canada.

Hit the Rafflecopter widget below and drop a comment answering the question. That's it.

a Rafflecopter giveaway

The contest begins now and will run until Tuesday, September 18th at 12:01 AM ET. At that time, the winners will be randomly selected and notified shortly thereafter.

Good luck!