There are few owners of 3G iPhone to complain about the poor performance of the battery. The screen multi-touch 3.5 and connection to the Internet require a lot of energy during the day, then how do we do? There are external batteries that can be used by connecting them to the dock connector of the phone in order to recharge the phone with the same ease request from the charger from the wall.

Among the cheaper models have identified the Power Station of Brando that has a capacity of 1000mAh. The device works just like a replaceable battery and charging in the same way you recharge your phone. It also works with the iPod Touch and has a cost of $ 25, equal to about 16 €.