56 - Battery pack
Follow these steps again until the battery has been charged and
discharged three times.
Use this conditioning process for all new batteries, or if a battery
hasn't been used for a long time.
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 self-discharge faster.
• Excessive recharging decreases the battery life.
• Look after your AC adapter and battery.
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.
