This'll be a long post, so bear with me. I have noticed that on my 4th gen iPod Touch that the battery sucks. Running 6.0.1 (non-jailbroken)... For example, no apps in the background, using Pinger to txt (so WiFi is on) and LCD set at half or less, it will begin popping up 20% warning is less than 45 minutes at a full charge. And not heaving txting, just a txt every 5-10 minutes. If I play ANY game, it easily goes from 75-100% to the 20% warning in 30 minutes or less. Last weekend, on a full charge, it played 2 hours of music with the screen off before shutting down. On my 1st gen iPod touch, as well as the old iPhone 3G that I have, the battery will actually run all the way down until the device WILL NOT BOOT, but shows the flashing red battery. This iPod will not do that. It shuts down, then when I reboot, it is at least 50%. That does not last and quickly shuts down again. I tried 10 reboots like this, each times it lasts less and less time, but I never once got the red flashing battery... Yes, I have done multiple full charge cycles. I have restored. Nothing helps. So last week, I made a trip to see a genius at the Apple Store (First time, pretty cool place). The night before I went, I did a full restore. I take it in, and the guy connects it to one of their iPads and pulls up diagnostic data.... he said that while I did the right thing restoring it, that there really wasn't a lot of diagnostic data because of the recent restore, and the battery diagnostic shows "normal". He noticed the battery level jump around, and said it's not normal and that he was CERTAIN it's a FW (not OS) issue...he told me to DFU restore, because a standard restore only replaces the OS and not the FW. He said if there is a setting issue that it might be in the backups and not to restore from a backup and set up as new. I did, and still have an issue. I downgraded last night from 6.01 to 5.01, and the behavior persists... So it's now jailbroken, and I downloaded BatteryInfoLite from Cydia. The "currect capacity" column is interesting. For example, it'll sit at 45%, then if I turn on WiFi and turn up brightness, the current capacity jumps to 12%. Turn down brightness, it goes up to maybe 30 percent. Then doing nothing at all, it'l get back up to 40%, then go down a few percent and up again... Yes, I realize that the iPod is estimating based on usage, but that seems pretty excessive to me... So, I am at a loss. But looking on Google,, the part where the ipod dies, then turn t back on and it shows 50% or more is common, but I no one seems to know what causes or why. In many cases, Apple has replaced those devices (with the replacements eventually doing the same thing)... What I do know is my battery shouldn't go from a full charge to the 20% warning just because I play 25 minutes of Angry Birds... Is anyone able to get their iPT4 to get all the way to the red flashing battery icon? On mine, no matter how many times I let it die, it boots back up showing almost 50% charge (which quickly dies again) but it will not show me the red flashing battery. I want to drain this all the way and do a full charge cycle, but I'm not convinced it's discharging fully. On my older iDevices, I let them dies and they have the red battery. Why is this different?