dell xps m1330 battery

[Cew27]

at the moment i have the 9 cell 85wh battery, its large but holds good charge i was wondering if there are any smaller ones that still offer good battery life.
thanks

 

[Cew27]

5 hours good use with moderate power savings and 50 percent screen brighness with wireless, probably 6 + with mega power saving

 

[Cew27]

i get 5 hours on full brighness with powersaving
5 hours 40 ish with low brigtness, using nvidia graphics chipset