It really depends on what kind of battery, what kind of laptop, what kind of processor and what you do with your laptop. Typical reliable answer for most new 6 cell battery is 3 hours at least, and 9 cell battery last 4-5 hours.
dell claims that in ideal conditions it can work 8 hours
It really depends on what kind of battery, what kind of laptop, what kind of processor and what you do with your laptop. Typical reliable answer for most new 6 cell battery is 3 hours at least, and 9 cell battery last 4-5 hours.