44 - Battery pack
Use this conditioning process for all new batteries, or if a battery hasn't been used for a long time.
Warning
Do not expose battery packs to temperatures below 0° C (32° F) or above 45° C (113° F). Extreme temperatures may adversely affect the battery pack.
The battery conditioning process ensures your battery accepts the maximum possible charge. Failure to follow this procedure will prevent you from obtaining the maximum battery charge, and will also shorten the effective lifespan of the battery.
In addition, the useful lifespan of the battery is adversely affected by the following usage patterns:
•Using the computer on constant AC power.
•Not discharging and recharging the battery to its extremes, as described above.
•Frequent use; the more you use the battery, the faster it will reach the end of its effective life. An embedded battery has a life span of more than 1,000 charge/discharge cycles.
Optimizing battery life
Optimizing battery life helps you get the most out of battery operation, prolonging the charge/recharge cycle and improving recharging efficiency. You are advised to follow the suggestions set out below:
•Use AC power whenever possible, reserving battery for mobile use.
•Remove accessories that are not being used (e.g. a USB disk drive), as they can continue to draw power.
•Store your PC in a cool, dry place. The recommended temperature is 10° C (50° F) to 30° C (86° F). Higher temperatures cause the battery to
•Excessive recharging decreases the battery life.
•Look after your AC adapter and battery.