All, Starting last week I cannot get more than 24 hours on a single charge. I am not running Wi Fi or Data, and not even really using the phone much. It just sits there in power saving mode. The battery usage report shows Cell Standby being resposible for upwards of 60% of the usage. Any idea what's going on? I used to be able to go several days without charging my phone but now it's being drained in less than a day.