Sony GPS-CS1KA Mode D'emploi page 20

Checking remaining battery power
You can check the remaining battery power on the status of the BATT
•
lamp by pressing
Lights in green: 70 % or more power remains.*
Flashes green: 20 % to 70 % power remains.*
When the available remaining power becomes 20 % or lower, the BATT
lamp flashes red. When the remaining power becomes even lower, the
BATT lamp flashes more frequently and the unit is deactivated for
tracking. Replace the battery with a new one.
* This function may not operate properly when using a Nickel-Metal Hydride
battery.
The unit consumes more battery power while searching than while
tracking.
Even if the unit calculates the remaining battery power and makes the
BATT lamp flash red while searching, when the unit switches from
searching to tracking, you may be able to use the unit longer.
GB
20
(Power) button shorter with the power turned on.
BATT lamp