How long laptop battery can be used

How long laptop battery can be used
Look at energy-saving technology laptop, CPU model,dual-core energy-saving design, a good CPU to reduce power consumption by 30%
Standby: no need to look at this indicator is entirely Bluff,able to standby time 4-pin to 3 hours, 9-cell five hoursmore, but time will not forget to see the work.
500M movie: original new battery, 4-core look a little more than an hour, 6-cell two hours and more than 9-cell 3 hours
2G + HD: new battery factory to see the player, and the lowest CPU load should be about 40%, will be more cost electricity, 4-pin to see 50 minutes point, 6-cell 1 hour and 30 minutes, 9-pin 2 hours 10 point（How long laptop battery can be used）
Play 3D games, such as WOW: 4 core 40 minutes, 1 hour 10 minutes 6-pin, 9 pin 2 hours
I was DELL's, 6-cell is broken, buy a new 9-cell batteryEBA are 8% power warning, quick
set can be set
If that is the life, my D630 6 cell battery charges after two years, and stand only 30 minutes, and finally buy a new 9-cell battery, because the school during the day and limitInternet access, on-time power outage, so basically 1week -5 recharged, summer vacation is not used for nearly2 years. If you repeatedly charge and discharge, thenevery 1-year battery will be very aging, and if it is work,family and class switch back and forth, then no problemwith the 2-year
How long laptop battery can be used