From left: the WD Blue 1TB regular hard drive, WD Black SSHD, and WD Blue 5mm regular drive.
January 8, 2013 12:49 AM PSTUpdated: January 8, 2013 1:34 PM PST
Photo by: Dong Ngo/CNET
/ Caption by: Dong Ngo
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Is your phone battery always at 4 percent?
These battery packs will give your device the extra juice to power through all of those texts and phone calls.