Charging Time By Environment - Citizen BN7020-09E Manual

Charging time by environment

Below are the approximate charging times when exposing to light continuously.
Please use this table as a reference only.
Environment Illuminance (lx)
Outdoors (sunny)
Outdoors (cloudy)
20 cm (8 inches)
away from a
fluorescent lamp
(30 W)
Interior lighting
• To charge your watch, it is recommended to expose the dial to direct sunlight.
Optimal charging is achieved by exposing the dial to direct sunlight outdoors for a
short time each day.
To work for one day
100,000 2 minutes
10,000 8 minutes
3,000 30 minutes
500 3 hours
Charging your watch
Charging time (approx.)
To start working
normally when the cell charged when the cell
is discharged
2 hours
3.5 hours
8 hours
50 hours
To become fully
is discharged
35 hours
90 hours
290 hours
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