THOMSON TEO7-8S Manual page 33

6. The stand-by time of the device is too short
- The duration of the lithium battery varies with environmental
temperature changes and the service conditions. If the environ-
ment temperature is too low or too high, the duration of the
battery will be affected. It is recommended to use this device at
normal temperature.
- Battery life is dependent on using status. High volume, WIFI,
and the frequent use may cause the battery to be drained at a
higher rate.
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