Cingular Go Phone: I-Up 5400 External Battery for Select Cell Phones Review

First thing to know about this product is that it is exactly the same as the Major Mojo 3GJuice (two company names, same piece of hardware) - except that it costs about $20 less - cool! Second it has 5400 MaH which means it will go much longer than other charges before it needs to be refilled.

I bought this to recharge my iPhone 3GS. It works but there is a trick to it. You must power the batter charger on first, THEN attach it to your iPhone. If you attach it to your iPhone then power on the charger you will get a message "Charging is not supported by this accessory."As long as you know to do things in this order (not very clearly explained in the documentation that comes with it) it works great.

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Product Description:
One of the most powerful batteries in the world. Nothing matches its power for its weight and size. This is the kind of power(5400 mAh) that laptops run on: never on a cell phone, until now. Be the first to own this excellent tech product. It is a must own gadget. Take your iPhone 3GS, iPhone 3G, Ipod, Blackberry, Sidekick, Nokia,T-Mobile cell phone, or even a Sony PSP and attach it to the I-UP and at the touch of a button your device will be charged to full 100% power within 2.5 hours. Its that fast and that easy, mobile power on the go. Its there any time you need or want it. Just charged your device to full? Want to charge another device even though you just charged your cell phone? Use it again and again, it can be used up to three times in a row! Stay in full control of your power needs. Thanks to the smart LED's you know exactly how much power the device has and how long it will take to recharge. You can game, watch movies, or surf the internet for hours, with just one small and convenient little gadget. Also comes with a BONUS PACK: special tips + cables for computability with many other phones. Supports modern Nokia phones, Sidekick, G1, Blackerberry, Sony PSP and many more. Works with any device that uses a USB-port.

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