Like it 06/14/2012
This review is from: Brunton Inspire Pocket
-Can get good deals on them
-Include charger for mini usb and usb devices (which include the ability to charge via those interfaces)
-~1.5 full charges of the iPhone 4S on a full charge (might be an underestimate since I left the battery outside of my sleeping bag in ~30F weather during night 1 which will kill the battery faster
-I think they claim it will fully charge a smartphone 2-3x. You will be lucky to charge it twice I believe.
-Other than that, it's great!
I have used this on 2 backpacking trips now to charge my iPhone, which I use as a GPS tracker with runkeeper for looking at my elevation gains and distance travelled, etc. I pull my SIM card in order to stop the constant cell tower searches the drain the battery and am able to get a full day of tracking per charge (but that's another story)
I often use the battery around the house to charge my bluetooth headset when I'm too lazy to find the charger. If I remembered to take it with my when travelling into the city for work, it would make a great backup battery since it's small and light.
I'm thinking of buying a 2nd for extended backpacking trips! It's cheaper than buying a GPS watch to track my activities...
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