One of the inherent challenges with any phone’s battery is determining just how much time you’ve got left until you need a recharge.  For instance, say you wanna surf the net or more importantly need to get through a 1 hour movie, do you have enough power?

Launched in the app store yesterday for the iPhone, the Battery Go! app lets you see how many minutes of juice you’ve got remaining to: surf the net, watch a video, listen to music or make a phone call.  A slider bar allows you to adjust the app according to your current charge or select a hypothectical charge.  The makers, Collegekidapp.com says that it will work to within a 5% accuracy, which is pretty reasonable.  You can grab it now for $0.99.

[via PCMag]

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