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(More customer reviews)If you have an Apple iPhone 3G, then you probably have the same three complaints that everyone else does:
1) No video camcorder
2) No flash
3) Battery life is poor
Well, the Kensington Mini Battery Extender helps address the third flaw. I also bought an Incase Power Slider because I was wondering how they compared. I had read reviews and heard from people that the Mophie Juice Pack had problems with the rubber case falling off, so I decided to skip that one, although I played around with it a bit before buying the Incase.
All these products perform their basic function admirably - they charge your iPhone when you don't have access to an outlet. I can't actually compare which one recharges the most or for the longest, but it's pretty safe to say that they should take care of you through most typical situations (e.g. a transcontinental flight, a busy day on the phone, or a night out with friends after a long day at work). Unless you are Jack Bauer and have a magical cell phone that never runs down, chances are that any of these will keep you in power.
But the fit and finish of these products is the real differentiator (along with price). In reverse order, are my preferences:
3) Mophie Juice Pack: Adds a little bulk to the iPhone, but the rubber covering can cause problems in the long run. But I also didn't like the design - it only partially covers the iPhone, leaving the top part exposed. Seemed awkward to me, combine that with the high price, and this wouldn't be my first (or second) choice.
2) Kensington Mini Battery Extender: The design is very awkward. Other owners had talked about keeping it attached while using the phone - not only does the connection feel flimsy (making me fear that the dock connector would be damaged), but it also looks unattractive. I'd only use this in an emergency situation or if I wasn't planning on using the phone at the same time. The only reason I have it as my second choice is because the price is right - for less than $35 (MSRP is $39), you can have the same power backup as with the Mophie or the Incase. If you are on a budget, then this is a great option. Another possible scenario is if you want to have more than one battery extender/charger - you can get three of these for the same price as one of the others.
1) Incase Power Slider: By far, the Power Slider had the best design. The two-part design completely encases the iPhone, increasing the dimensions only slightly. It's a little wider, a little longer, a little thicker, and a little heavier. But it's a very natural look, and most people wouldn't even realize it's also a battery pack. It's pretty easy to put on and take off, and feels like a second skin in the end without impeding the camera. But it is harder to access buttons, so I don't plan on using this on a daily basis - only when I travel.
SUMMARY: Like I said, any of these will do the basic job, but the Kensington will do it cheaper and the Incase will do it in style.
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