Anker Astro III Battery?

[Brent Harding]

I got inspired to finally order a battery for my IPhone 4S that I can use 
for extra power on the go. I was torn between two of them, the one listed 
today from Verbatim on 1SaleADay.com, and one I found searching on Amazon 
called the Anker Astro III. They both have 10,000 mah of current in them, 
but the Anker is physically smaller according to the specs. Also, I got 
scared by the fact that the Verbatim has a "dedicated IPad port", not sure 
if that meant I could fry my 4S if I plug into that instead of the 
undesignated USB on it. Has anyone tried the Ankor Astro batteries with 
their IDevices? Do you need to turn on a switch or something to use them? 
The only switch I found mentioned in Amazon's description is some switch to 
go between 9 and 12 volts for something, which may be a third DC out jack 
I'd probably never use. I figured that with this thing being fairly close in 
price to others, I'd go for it, but has anyone had good luck with them? The 
Anker company or whoever they are is spelled A N K E R, how it sounds, not 
like the thing you throw over the boat to hold it still.

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