Do not leave batteries exposed to high temperatures for extended periods. Prolonged exposure to heat (for example, inside a hot car) will accelerate the deterioration of Li-Ion cells.
Remove the battery if the notebook will be stored (turned off and not plugged into AC power) for more than 2 weeks.
Remove the battery if the notebook will be plugged into AC power continuously (via a wall adapter or docking station) for more than 2 weeks.
Store Li-Ion batteries between 20°C and 25°C (68°F and 77°F) with 30% to 50% charge.
Reduce the brightness of the screen to the minimum readable level. Use the function keys on the top of your keyboard to adjust the brightness.
Remove peripherals when not in use. External hard drives, CD-ROMs, Zip drives, PC cards, and other peripheral devices can draw power from your battery even when they are not in active use. Disconnect them when you have finished using them.
at 12:50 AM on Apr. 3, 2011