dell laptop options

moneysaver05_2

i would like some one to tell which battery i chould opt for? from the options below:
4Cell 29WHr Primary battery [Included in Price]
6 Cell, 56Whr Lithium Ion Primary Battery [add £11.75 or £1/month1]
9 Cell, 85Whr Lithium Ion Primary Battery [add £35.25 or £1/month1]

I dont want a battery that will die as soon as i try and use the laptop mobile ( not pluged in the mains) so if someone can tell me how long each wil roughly last that would be ace!

Also would the 56Whr & 85Whr batterys be flush with the laptop or will they be sticking out?

your advice is most welcomed.
cheers

steveo3002

i got the 6 cell battery, its flush and states a time of around 3 hrs on power saving mode

moneysaver05_2

steveo3002 wrote: »

i got the 6 cell battery, its flush and states a time of around 3 hrs on power saving mode

thanks steve!!....how long does it actually last in reality....because no one uses it in power saving mode.
cheers

steveo3002

ive only had it sinse tuesday , ive only ran it once without mains power , i think i got a little over 2hrs and it was at about 18% left when i turned off

i think the 9 cell one will stick out