Re: Incredibly low Geekbench scores...
I've heard that using a DNS will have an effect on battery life. I'm not sure how accurate those claims are, but they seem to be prevalent.
You can run this test to see if your battery is performing as it should.
Write down your usage and standby time, press the sleep/wake button (or lock button, as some call it) to put the device to sleep, and set the device down for five minutes. When you come back, take note of the change in time. If your device is sleeping properly, then the Standby time should have increased by five minutes and your Usage time by <1 minute.
If your Usage time rises by more than one minute, you have a drain problem. Something is keeping your device from sleeping properly, significantly shortening the time it will last.
If it passes this test, then it's not the battery, but probably apps doing overtime.