Overcharge Prevention Function And Power Source - Wired W36 Series Instruction Manual

■ Overcharge prevention function
・ When the secondary battery is fully charged, the overcharge prevention function
is automatically activated to avoid further charging. There is no need to worry
about damage caused by overcharging no matter how much the secondary
battery is charged in excess of the time required for fully charging the watch.
※To check the time required for fully charging the watch
→ Reference for Time Required to Charge P.49
NOTICE
■ Notes on charging the watch
・ When charging the watch, do not place the watch in close proximity to an intense
light source such as lighting equipment for photography, spotlights or
incandescent lights, as the watch may be excessively heated resulting in damage
to its internal parts.
・ When charging the watch by exposure to direct sunlight, avoid places that easily
reach high temperatures, such as a car dashboard.
・ Always keep the watch temperature under 50℃.
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Overcharge prevention function and Power Source
■ Power Source
・ The battery used in this watch is a special secondary battery, which is different
from ordinary batteries. Unlike an ordinary silver oxide battery, the secondary
battery does not require periodic replacement.
・ However, for the secondary battery, the battery characteristic changes due to
repeated charge and discharge over a long time, and the duration may be
shortened. (It varies depending on use condition and storage place environment.)
・ The secondary battery is an environmentally friendly, clean energy storage device.
Warning
■ The battery used in this watch is a special secondary battery.
When replacing the secondary battery, make sure to install the exclusive SEIKO
secondary battery for this watch. Installation of any other battery can generate
heat that can cause bursting or ignition.