Power
Hardware and Software Guide
2–33
Storing a Battery Pack
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CAUTION:
To reduce the risk of damage to a battery pack, do not
expose it to high temperatures for extended periods of time.
If a notebook will be unused and disconnected from external
power for more than 2 weeks, remove any battery packs and store
them separately.
High temperatures accelerate the self-discharge rate of a stored
battery pack. To prolong the charge of a stored battery pack, store
it in a cool, dry place.
Use the following table to estimate how long you can safely store
a battery pack. The storage times provided are based on a battery
pack that contains 50 percent of a full charge. A fully charged
battery pack can be safely stored for longer periods; a battery
pack containing a lower charge can be safely stored for less time.
Before using a battery pack that has been stored for one month or
more, calibrate it.
Temperature
Range °F
Temperature
Range °C
Safe Storage Time
115° to 140°
46° to 60°
Less than 1 month
79° to 113°
26° to 45°
No more than 3 months
32° to 77°
0° to 25°
1 year
