Docomo Style series F-10C Instruction Manual page 26

Charging
Check the following before and after charging.
Check if FOMA terminal is not wet. Never try to
charge the battery pack when FOMA terminal is
wet.
Accessories and optional devices are not
waterproof/dustproof.
When charging the battery when or after FOMA
terminal is wet, adequately drain it and wipe off
water with a dry, clean cloth etc., before
connecting the accessory desktop holder or
opening the external connection jack cap.
When the external connection jack cap is
opened for charging, close the cap firmly after
charging. It is recommended to use the desktop
holder for charging to prevent water from
seeping inside from the external connection
jack.
Do not use the AC adapter or desktop holder in
a bathroom, shower room, kitchen, lavatory or
other highly humid area. May cause fire or
electric shock.
Do not touch the AC adapter or desktop holder
with wet hands. May cause electric shock.
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