Hi All, How are you doing? I just got my iPhone 4 few days ago, the battery usage drop 1% every 4-7min just by doing very light surfing on safari or immobile, reading forums and text max only 3 tabs. I got all those that will drain battery turn off, push, fetch, 3g, even brightness is on 25% any of those unnecessary is all off. I'm not sure am I getting a good performance on the battery since I jump from iPhone 2G. I got around 10hr 35min of usage, 12hr plus of stand by on my first cycle. Checking all around the net I've found many users with stand by dropping heavily on battery. Fortunately for me I do not have such problem whenever it's on stand by the battery barely move at all. Not knowing is this normal for iPhone 4, or maybe it's just not up to my expectation. However, I do find that there's quite a lot of iPhone 4 replacement issue mostly reason cause by a bad battery. Any suggestion ?