MiLi PowerSpring 4 for iPhone 4 review

Andy Betts

The MiLi PowerSpring enables you to charge your iPhone wherever you are. Find out more in our full review.

MiLi PowerSpring 4 for iPhone 4 review

It’s still a source of annoyance for many that the iPhone still doesn’t support a user-changeable battery. It means you either have to ration your usage when away from a power supply for an extended period of time, or to add an external battery pack. PowerSpring 4 is the first such pack for the iPhone 4 and promises to double the life of your battery.

Normally adding a battery like this is a controversial move since it also serves to ruin the whole look of your phone. In the case of PowerSpring 4 it makes the iPhone 4 look like nothing if not the iPhone 3.

It gains a bit of extra girth, and replaces those sharp corners with the rounded edges of Apple’s iconic phone. Only the slight bottom heavy design makes it a noticeable addition to your device.

But it is slim and unobtrusive enough, and the 1600mAh battery it features will fully recharge an iPhone 4 from empty. Although not a cheap option, for power users it is most likely the best there is.

Price: £55

Verdict: 8/10

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