The battery life sales point is an interesting differentiator. By my quick survey it looks like most laptops get about 4-5 hours of battery life now a days.
The non-user-replaceable battery seems to be a gamble that hasn't hurt them in the market.
The non-user-replaceable battery seems to be a gamble that hasn't hurt them in the market.
I have a UL80vt running Ubuntu 9.10 and get around 5hrs on that with the screen at full brightness (b/c brightness control only works with reboot). It also uses the nvidia dedicated graphics afaik (it has hot-switchable dual graphics under windows).