Help Battery lower after plugging it in?

[fearofth3dark]

I know there are 20 million battery threads but I don't think anyone covered this issue. My battery was at 77% and I have a long day ahead of me so I figured I'd plug it into the wall while I used it to check twitter. Roughly 30 minutes later the battery is 72%. Is this a problem with something I'm doing or does viewing twitter use battery faster then it can charge?

 

[fearofth3dark]

Bump

 

[nyydynasty]

same here (sometimes) on the captivate. no fix for it that I know of

 

[fearofth3dark]

Alright, atleast I'm not the only one.