Charging
The battery pack is not fully charged at the time of
purchase. Be sure to charge the battery before use.
Cautions while charging
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For details on the estimated charge time
☞
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The battery can also be charged with the handset
turned on (While charging, the battery icon appears
with [
] superimposed).
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Do not charge for a long time with the power left
turned on. If the handset is left turned on after
charging is complete, the battery pack charge level
decreases. In this case, an AC or DC adapter (sold
separately) charges the battery again. However,
depending on the time when the handset is
disconnected from the AC or DC adapter, the battery
charge level may be lower or the battery pack may only
be usable for a short time.
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If the handset is left for a long time even after the
charging is completed, the battery level may decrease.
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When the battery is empty and the handset is being
charged, the charging lamp may not illuminate
immediately. However, charging is in progress.
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If the battery empty alert is displayed and the power
cannot be turned on, charge the battery for a while.
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While charging, the handset may not be turned on even
when the charging lamp is illuminated in red. Charge
longer and try turning the power on again.
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Frequently recharging the battery when its power is
still remaining enough may shorten the usable life of
the battery pack. It is recommended to use the battery
to a certain level (e.g. after the battery level decreases)
before recharging.
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When the battery becomes warm, charging may
automatically stop even if the battery has not been
fully charged. Charging automatically resumes after
the temperature lowers to an appropriate temperature.
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You can check the latest charger compatible with the
handset at the NTT DOCOMO Online Shop.
https://www.mydocomo.com/onlineshop/options/
index.html (in Japanese only)
Battery pack usable life
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Battery pack is a consumable product. Battery life
power charge is gradually reduced every time the
battery is charged.
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When battery life per charge is reduced to
approximately half of the default time, this means that
the battery pack is approaching the end of its usable
life. In this case, it is recommended to replace the
batter pack as soon as possible. Depending on usage,
the battery pack may swell as it approaches the end of
its service life but this will not cause problems.
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Before Using the Handset