The battery charge indicator on my iPhone keeps confusing me. And in a colorful fashion. This nagging little problem has been bothering me for quite some time already.
It happens like this. The 3G’s battery meter, at the upper right corner of the screen, shows the your phone is completely charged. Then all of a sudden the battery level indicator drops unexpectedly– with the warning message that you need to charge your iPhone ASAP. Weird thing was that this meter did not match with the larger indicator (red/green) when I was actually charging the phone. The meter actually did not do what it was supposed to do, it was not moving according to the charge consumed.  Only re-booting the iPhone helped.

However, I am not the only one to have experienced this. Take a look at Apple’s Discussion Forums 

As an iPhone fan what I find hard to understand is that why these minor glitches persist in a phone which is otherwise far better than any mobile phone out there.