8 9
7 Charging time
Below are the approximate values when exposing to the light continuously.
The charging time differs depending on the color of dial or other conditions.
Use the table below only for your reference.
Illuminance
(Lx)
Environment
Charging time to
work for one day
(approx.)
Charging time to start
working normally when the
battery is empty (approx.)
Time for charging fully
when the battery is
empty (approx.)
500 Interior lighting 4 hours 60 hours —
3,000
20 cm (8 in.) under a fluorescent
lamp (30 W)
40 minutes 7.5 hours —
10,000 Under cloudy weather 11 minutes 2.5 hours 70 hours
100,000 Under direct sunlight in summer 2 minutes 45 minutes 35 hours
Battery duration after full charging (without further charging) About 12 months
Charging the battery
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