Battery Time Remaining - Vista

[jeffer]

Hello, I have an AR31S running Vista Premium. When I am running on battery and I hover over the battery icon in the system tray (bottom right), it does NOT display an estimated time remaining, ONLY a percentage.

However, my girlfriend just bought an NR11Z which also runs Vista Premium, and it DOES display an estimated time remaining in hours and minutes.

How can I make my AR31S display this information? Do I need a driver?

I have searched google and on here; Sony and HP users report the same problem, but no solution. Why do newer laptops (NR11Z) display time remaining when older (AR31S) ones do not?

[jeffer]

I found this article online. I wonder if this is the problem. If so, anyone know a way round this?

- The battery meter shows the % remaining only and does not show the time remaining (which apparently is due to the fact that Sony BIOSes apparently set a wrapper layer around the Windows API for the battery so that non Sony batteries will not work on VAIO machines...Until I get this driver, the battery will not report the charge rate/discharge rate as the battery feedback sensors cannot connect to the Windows API without this wrapper layer)