The operation time provided by
the battery is short.
• Is the terminal left for a long time
under the state of out of service
area?
Out of service area, a lot of
power is consumed to search
available radio waves. If you are
out of service area for a long
time, set Airplane mode or power
off the terminal. →P. 60, P. 109
• The operating time of the battery
varies depending on the
operating environment and the
degradation level of the internal
• The internal battery is a
consumable part.
Each time the internal battery is
recharged, the battery usage
time per one charge gradually
decreases.
If the operation time becomes
too short even in fully charged
state, contact "Repairs
(Inquiries/Request)" on the last
page (in Japanese only) or a
DOCOMO-specified repair office.
• When the Wi-Fi function or
Bluetooth function is not used,
turn off the setting. →P. 110,
P. 115
141
Appendix/Index
