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New Trent iCarrier heavy duty dual port power pack
Take a whopping 12000mAh of power on the road with the iCarrier. This pocketable power pack holds enough charge to recharge an iPhone 5 six times, or enough to top up the iPad 4 by 80 percent.
Dual USB ports -- one outputting 1 Amp, the other 2 Amps -- means that you can charge two devices simultaneously.
Don't let the 'i' in the name full you, this is compatible with a wide range of smartphones, tablets, cameras, and portable gamins systems.
Image source: New Trent.