Anyone that owns a smart phone these days knows that there never seems to be enough battery life. This is even more true for those of us with the HTC EVO 4G from Sprint. The phone is excellent (once it is configured properly). But has the worst battery life in a phone I have ever seen. In a normal day just in typical usage (for me) I get about 7-8 hours of life. If I am in an area with poor reception it is even worse (sometimes as little as 3 hours).  There are multiple ways to try and extend this life; everything from killing tasks to running around with an extra battery pack to externally charge your phone. None of these really work though and all are time consuming. Trust me there is nothing like trying to talk with a giant tumbdrive dangling from your EVO. Fortunately there are battery packs and cases that do not require you to leave them hanging from the phone. We are taking a look at one of these today; it is the PowerSkin Silicone case with Bulit-in Battery for the HTC EVO 4G.