Docomo FOMA D901i, Manual, Page: 21 / 596

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Battery pack
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The battery pack will gradually wear out.
Battery life also depends on how you use the battery pack; you know it is time to replace it when the usage
time is very short even though you fully charge it. The specified battery pack can be purchased separately.
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Recharge the battery pack in locations where the ambient temperature is between 5 ° C and 35 ° C .
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When using for the first time or after a long period of non-use, be sure to fully charge the battery
pack before use.
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The time of use provided by the battery pack depends on the ambient conditions and the condition
of the battery pack itself.
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Do not dispose of the battery pack with other regular household waste.
Tape the terminals of battery packs that are no longer needed and take them to an DoCoMo service center.
Alternately, you can also dispose of the battery pack in accordance with local regulations.
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Recharge the battery pack once every 6 months even when you do not use the battery for a long time.
Failure to fully charge the battery pack periodically could negatively impact battery performance and
service life.
Adaptor (and charger)
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Recharge the battery pack in a location where the ambient temperature is between 5 ° C and 35 ° C .
Do not recharge in the following locations:
• Locations that are subject to high humidity, dust or excessive vibration
• Near general subscriber phones, TVs or radios
● It is normal for the adapter (and charger) to become warm during recharging. You can continue
charging with a warm adapter.
● When the battery pack is recharged using the DC adapter, always keep the car engine running.
Failure to do so could cause the car battery to run down more quickly than normal.
● When an outlet with falling prevention mechanism is used, check the instruction manual for the
outlet before use.
UIM (FOMA card)
● Do not use excessive force to remove the card’s IC section.
● Do not place an excessive load on the UIM when inserting it into the terminal.
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The UIM becomes warm during use. This is normal and not a cause for concern.
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Note that any card failures resulting from inserting the UIM in an IC card reader/writer (external
device) not designated by NTT DoCoMo are the responsibility of the customer.
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Make sure that the IC is kept clean.
● Use a clean dry cloth for cleaning the UIM.
● It is recommended that users maintain data stored on the UIM in some other form.
If the data should be erased, NTT DoCoMo assumes no responsibility for the loss of any data.
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Any UIMs that are no longer needed should be returned to an DoCoMo service center for proper
disposal.
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Avoid extremely high or low temperature.
miniSD memory card
● Do not remove the miniSD memory card, turn the power off or apply impact while using it.
The data may be corrupted.