Help needed building a T6x for Ultamate Battery life

[TomKroscavage]

I would like to sell all of my T4x stuff and build a T6x. My T43 is already way more powerful then I need so I would like to focus on battery life. I already have a SXGA+ screen and would like to stay with that resolution, but would consider an XGA. What is possible in terms of battery life? I would like to start with a 14" base. Should I get a T60 or a T61. I already have a pile of XP COAs so a vista COA could be helpful in the future.

[aaa]

I'd start with an Intel gpu. Not sure if T60 or T61 would be better batterywise, I'd lean towards T61.

SXGA uses around 1-2w extra (ie 10% or more difference), so it depends on how much you want it. If you go XGA, you may as well get an X series instead of a T6x.

[TomKroscavage]

Does the battery in an X60's last longer then the one in a t60?

[dr_st]

Nope.

When configured with XGA and the Intel GMA, the T60 with 6-cell/9-cell has better battery life than the X60/X61 with 4-cell/8-cell, respectively.

Lenovo's Ltwbook also claims that the T60 has marginally better battery life than a T61 given same battery size and base config (i.e. XGA/GMA).

Here are the data from the Ltwbook, for GMA graphics. They are somewhat exaggerated, but should at least be consistent relative to the models.

T60 6-cell/9-cell/9-cell+Ultrabay: 6hr/9hr/11.5hr
T61 6-cell/9-cell/9-cell+Ultrabay: 5.7hr/8.6hr/10.1hr
T61 14W 4-cell/6-cell/6-cell+Ultrabay: 3.6hr/5.7hr/7.2hr
X60/X61 4-cell/8-cell/8-cell+Ultrabay: 3.9hr/7.8hr/10.7hr