1 of 1 people found the following review helpful
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This review is from: Mophie Powerstation Battery for iPhones, iPads and Smartphones with USB Connection - Black (Wireless Phone Accessory)
I actually managed to lose my original one of these (perhaps the one disadvantage of them being portable!), but have replaced it - could not bear to be be without it.
Pretty simple product, but offers excellent piece of mind when out and about - I no longer have to worry about my phone being on less than 20% battery before leaving home or the office. I get about 2-3 full iPhone 4S charges out of it.