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New Trent iCarrier Dual Port Charger
If you want more power than the iCurve Dual Charger offers then you need to take a look at New Trent's iCarrier Dual Port Charger. Here's a battery pack that offers a whopping 11,000 mAh of power, enough power to charge the new iPad 3 from totally flat to 70 percent charge, or fully charge your iPhone 4S a whopping six times!
Despite the huge battery capacity, the device will still fit comfortably into your pocket when you're out and about.
Image credit: New Trent