Innergie PocketCell Rechargeable Battery Bank review: Innergie PocketCell Rechargeable Battery Bank

I can't say the PocketCell charged extremely quickly, but I tested it with an iPhone, the 3rd-generation iPad, a Kindle Fire, and the Samsung Galaxy S III smartphone, and it worked just fine with all of them. However, I was unable to charge a PS Vita gaming system (using Sony's proprietary USB cable).

The battery pack is compact and lightweight, weighing 2.5 ounces.

Like a lot of these battery packs, the PocketCell has a set of four LED lights that indicates how much juice it's got left. Another nice feature: the PocketCell will automatically turn to sleep mode to save energy if you stop using it for 10 seconds (in other words, if you accidentally leave it on after you unplug it from your device, it will go to sleep by itself).

The connectors, separated. Sarah Tew/CNET

What you'll pay

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