As we review laptops throughout 2012, we'll add their battery life stats here. If battery's the most important thing to you, this is the place to look.
We run two separate battery tests when we test laptops at CNET Australia — a heavy test, which turns up screen brightness and volume to full and plays back a 720p H.264 video; and a light test, which sets screen brightness to 40 per cent and visits three different websites every 20 seconds until battery exhaustion.
We've separated the below into screen sizes, so you can identify first what size laptop you want, then find how it rates in our tests.