For new batteries
Charge battery for 12 hours when you first receive it.
Fully charge/discharge the batter two to four times to condition the battery.
Note: If the charger stops charging the battery before full charge, unplug and replug in the charger to restart charging.
Every day use
If you connect to an electrical outlet for long periods of time you should remove your battery to prevent a constant state of charging.
Even if you use AC power most of the time, use the battery periodically to keep it in good condition. Unplug your AC adapter when the computer is not in use to prevent overcharging.
Charge your battery to full, then run it on battery power only until it is completely out if using Ni-Cd or Ni-MH batteries to prevent the"memory effect"or mostly out for Li-Ion to prevent overcharging.
Do not expose the battery to extreme temperatures. Do not leave your battery outside in the cold or in your car in the summer. Cold batteries can't create very much power and hot batteries will discharge very quickly. Permanent damage will result if the battery is stored in temperatures above 110 degrees Fahrenheit.
Watch for over heating. This may occur if your laptop fan cannot circulate the air properly when your laptop is sitting on a soft surface.
Watch your battery use. Keep an eye on your battery consumption and know how much power you have remaining. Use the battery power icon on the system tray or you can purchase batteries which have LED gauges on the outside of the battery itself.
Don't run programs or devices that you aren¡¯t using. Remove PC cards and turn off Wi-Fi software. Using your laptop to watch movies or play games will drain the battery quickly as well.
Storage
If you do not use your laptop for extended periods of time (greater than a week), remove the battery from the laptop and store it in a cool, dry place away from heat and metal objects.
Store the battery at a 40-50 percent charge level. Never fully charge or discharge the battery before storage. The 40-50 percent charge assures a stable condition even if self-discharge robs some of the battery's energy.