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16
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)
Charging time (approx.)
To work for one day
To start working
normally when the
cell is discharged
To become fully
charged when the cell
is discharged
Outdoors (sunny) 100 000
3 minutes 2 hours 35 hours
Outdoors
(cloudy)
10 000
11 minutes 3.5 hours 80 hours
20 cm (8 inches)
away from a
fluorescent lamp
(30W)
3 000
40 minutes 8 hours 280 hours
Interior lighting 500
4 hours 50 hours −
Charging your watch Charging your watch
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