Sorry if it been posted already... I would charge my captivate overnight, barely use it during the day at work and it would shut off by 3. (8hours) I just came from a iPhone a couple days prior and this was gonna be a deal breaker. found this and it Seriously has fixed the problem! 1. Connect the phone to the charger with the phone powered on, and allow the phone to charge until it shows 100% 2. Disconnect the phone from the charger, and power it off.* 3. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the battery indicator shows 100% (you can use vol-up/vol-down to make the indicator come back up when the screen goes to sleep). 4. Disconnect the phone from the charger and power it on.* 5. Once the phone is powered completely on, power it off again and reconnect it to the charger until the battery indicator shows 100%. 6. Disconnect the phone, power it on, and use it.