LG FR74 - Manual (Page 15)

Starting the LG Heart Rate Earphones 15
St
ar
ting the L
G He
ar
t R
at
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arphone
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2
15
Checking battery charging status
Check the color of the LED indicator when the battery is charging.
Battery
Status
LED indicator
Battery
Status
LED indicator
Charging
Red / Turned on.
Charged LED off.
� LED indicator blinks when the battery is low. Please charge.
� LG Heart Rate Earphones automatically turns off when battery is empty.
� Fully charge the device before using for the first time or after long period of non-use.
� If you use USB HUB, the battery may not be charged.
� Operating temperature of LG Heart Rate Earphones is -15 °C ~ 45 °C (5 °F ~ 113 °F). The battery
capacity may decrease if you use in too high or low temperature.
� If the temperature is too low or high, the device may not be charged, charge again at the room
temperature. (10 °C ~ 45 °C (50 °F ~ 113 °F))
,
Note
Battery charging and average battery usage time
Battery charging time and average battery usage time may vary depending on the battery charging
status, operational status and environment conditions.
Battery charging time 3 hours to fully charge battery
Average battery usage
time (when fully
charged)
Checking heart rate and playing music: up to 4 hours
Standby mode : up to 250 hours