IBM T42 (Score 1)

IBM's T series has been great. 4 hours has not been a problem for me. Not every laptop has to have a "spare" battery to get additional life. The IBM T series, and others can add a second battery in place of the DVD drive which adds some additional life. I don't have one because I haven't needed it. The best timesaver is to really have the system shut down everything that is not being used, and shut down quickly when you are not using the system as a whole.