Lenovo X200 9 cell/6 cell battery

hi all, I currently use x200 with 4-cell battery, intending to purchase 6-cell/9-cell battery. Newbie question is how long battery life of 6-cell/9-cell?
Given usage is on power saver mode, browsing with wifi, and word editing. Thanks in advance.

 

Each cells used in the 4, 6 and 9 cells have the same capacity, so if you are getting say 2 hours on a 4 cells, you would get 3 hours on a 6 cells, and 5 hours on a 9 cell, so on....

 

thanks lead_org for the awesome response and info

 

That's not quite accurate for the x200.

4 cell - 28 WHr
6 cell - 56 WHr
9 cell - 84 WHr

Therefore, the 6 cell will give you double your current run time, and the 9 cell will give you triple your current run time. This is because the 4 cell is a Prismatic battery and has a lower per cell charge.

 

Thanks for clarifying this point. My friend had the 6 and 9 cells, and i assumed that the 4 cells were the same, like Lenovo use to do with their batteries.

 

thanks jonlumpkin, lead_org.. heading to get 9 cell soon, 4 cell drains too fast

 

9cell should give you 7-8hrs with basic office tasks.

 

I was getting it wrong as well thanks for the explanation...