Samsung CT58 User Manual page 11

Getting started
To save energy, unplug the charger when not in use. The charger does not have a
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power switch, so you must unplug the charger from the electric socket when not
in use to avoid wasting power. The charger should remain close to the electric
socket and easily accessible while charging.
When using a charger, it is recommended to use an approved charger that
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guarantees the charging performance.
If there are obstructions between the Fit and the charging cable, it may not
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charge properly. Check if there is any sweat, liquid, or dust on them before
charging.
If the battery is completely discharged, the Fit cannot be turned on immediately
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when the charging cable is connected. Allow a depleted battery to charge for a
few minutes before turning it on.
If you use multiple apps at once or apps that need a connection to another
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device, the battery will drain quickly. To avoid losing power during a data
transfer, always use these apps after fully charging the battery.
When connecting the charging cable to another power source, such as a
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computer or multi-charging hub, the Fit may not charge properly or it may
charge more slowly because of a lower electric current.
The Fit can be used while it is charging, but it may take longer to fully charge the
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battery.
If the Fit's power supply is unstable while being used and charged at the same
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time, the touch screen may not be responsive. If this happens, disconnect the Fit
from the charging cable.
While charging, the Fit may heat up. This is normal and should not affect the
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Fit's lifespan or performance. Before wearing the Fit, allow it to cool down for a
while before using it. If the battery gets hotter than usual, the charger may stop
charging.
If the Fit is not charging properly, take the Fit and the charging cable to a
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Samsung Service Centre or an authorised service centre.
Avoid using a bent or damaged charging cable. If the charging cable is damaged,
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stop using it.
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