[Tfug] battery life, power management and windows vs linux

[Matt Jacob]

> Someone correct me if I'm wrong, but I was under the impression that
> the modern 'smart batteries' do all the time remaining and charge
> calculations internally and report via acpi. I was therefor operating
> under the assumption that the reported charge / time remaining was
> completely OS independent and based only on the current/power drain.

You're right, except that the Windows battery meter is horribly
inaccurate. If you're using the ThinkPad Power Manager, you're
probably getting a (mostly) accurate reading. Check out this post for
more info:

http://www.lenovoblogs.com/insidethebox/?p=52