Casio G-Shock 5657, Operation Manual, Page: 8 / 27

Important!
●
Depending on light intensity and local
conditions, the watch may become hot
to the touch when exposed to light for
charging. Take care to avoid burn
injury after charging. Also, avoid
charging the watch under high-
temperature conditions like the ones
described below.
ー
On the dashboard of a vehicle
parked in the sun
ー
Near an incandescent light bulb or
other source of heat
ー
Under direct sunlight or in other hot
areas for long periods
●
Checking the Charge Level
In the Timekeeping Mode, the current charge
level is indicated by the mode hand.
③
①
②
A
Good (high charge)
B
Good (medium charge)
C
Low Battery
●
Low Battery
A low battery will cause [LOW] to flash and will
disable the functions below.
●
Illumination
●
Sounds (alarm, etc.)
●
Connection with a phone
If the charge level drops even further, [CHG]
will flash and the hour and minute hands will
stop at 12 o’clock. If this happens, all functions
are disabled.
●
Dead Battery
The digital display will go blank if the battery
goes dead. Memory data is lost, and watch
settings are returned to their initial factory
defaults.
Important!
●
Should the battery go low or go dead,
expose the face (solar panel) to light as
soon as possible.
●
Exposing the watch to light while its
battery is dead will cause [CHG] to
start flashing. Expose the watch to light
to charge it until the Timekeeping
Mode screen re-appears.
Note
●
If [R] is flashing, it means that all
functions, except for timekeeping, are
disabled due to high momentary
battery power consumption.
●
Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Charging Times Required for 1 Day of
Operation
Light Level (Lux)
Approximate
Charging Time
50,000 8 minutes
10,000 30 minutes
5,000 48 minutes
500 8 hours
Times Required to Achieve Next Charge
Level
●
Sunny day, outdoors (50,000 lux)
Dead battery
n
Medium
charge
3 hours
Medium charge n High
charge
24 hours
High charge n Full charge
7 hours
●
Sunny day, near a window (10,000 lux)
Dead battery n Medium
charge
7 hours
Medium charge n High
charge
91 hours
High charge n Full charge
25 hours
●
Overcast day, near a window (5,000 lux)
Dead battery n Medium
charge
11 hours
Medium charge
n
High
charge
147 hours
High charge n Full charge
40 hours
●
Indoor fluorescent lighting (500 lux)
Dead battery n Medium
charge
147 hours
Medium charge
n
High
charge
-
High charge n Full charge
-
Note
●
Actual charging time depends on the
local charging environment.
Watch Operation Guide 5657
8