HP Nc6220 Hardware-Software Guide - Page 60
Storing a Battery Pack, Temperature, Range °F, Safe Storage Time
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Power Storing a Battery Pack Ä 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 115° to 140° 79° to 113° 32° to 77° Temperature Range °C 46° to 60° 26° to 45° 0° to 25° Safe Storage Time Less than 1 month No more than 3 months 1 year Hardware and Software Guide 2-33