Computer guys, quick question

[Sijray21]

Life is anywhere from 2.5/3 hrs when I'm running windows/osx alongside eachother..

i forgot you have that new apple. having the latest technology might also have something to do with the battery working when plugged in. my compaq that did this was old (bought in 2004), and i'm sure the OPs laptop is near that age as well. i have a IBM thinkpad T60 currently and i don't have any issues with the battery / a/c power cord connection. I also had a T43 that didn't have any issues. I think after age and extended use it becomes a problem if you always leave the a/c cord powering the laptop while the battery is connected.