I wanted to use my S3 over the weekend, so I shut down the DNA and swapped the SIM over to the S3. When I picked up the DNA again today, the battery was nearly flat. It does this every time. The S3 on the other hand when left shut down always has the same charge on it. Since I swap SIMs in the morning, the phone is just off the charger so I expect when I come back to it that it will be nearly fully charged. Instead it's acting as though it's on standby instead of shut down. What the heck? This is a great phone, but it very definitely has a few problems.