Scripps Howard Syndicated Column on
Powerocks Stone3 Portable Power Bank by Michael Berman
By Michael Berman,
Scripps Howard Syndicated Column
- New devices from
PowerRocks, Accell and AT&T Keep You Charged on the Road
5/7/13 3:20 PM
In my lifetime we’ve had Pet Rocks, Pop Rocks and Fruity Pebbles,
but never Power Rocks - - - until now.
The PowerRocks Stone 3 7800 mAh ($99.99) is a dual USB battery - - -
they call it a “Powerbank” - - - that can charge two mobile devices
simultaneously including tablets, cameras and smartphones.
The device has two USB output ports and micro and mini USB input
ports that are used to charge it, so you can use either the micro
USB cable that comes with the 7800 or another that may be lying
around the house or office.
The charging cable that comes with the 7800 needs either a USB plug
adapter, which is pretty common with today’s collection of mobile
devices, or can be plugged directly into an outlet or computer that
has a USB port. The PowerRocks logo flashes when it is charging and,
obviously, stops flashing went it is fully charged.
We were able to charge an Apple 4/S and an Amazon Kindle Fire four
or five times using the PowerRock device without having to replenish
the battery, which is pretty good by today’s standards. The
company’s website boasts that it can charge devices five or six
times, so it pretty much performed as the company claims.
One of the best things about the 7800 is its size. Weighing in at a
mere eight ounces and being pretty small (three inches squared) in
stature, it takes up very little real estate in a briefcase,
computer bag or purse.
The Stone 3 is also built to last a bit longer than most of the
other batteries on the market today. A majority are rated at 6000
mAh indicating it will take about 6000 milliamp hours for the
battery to die. The Stone 3 is rated at 7800 mAh. You do the math.
For more information, check out the company’s website at
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