Emerson EMP413-2 - Manual (Page 10)

CHARGING THE BATTERY
Your MP3 Player has an integrated rechargeable Li-ion battery. It is recommended to fully charge the player before using it for the first time.
Recharge the battery by connecting the player to a computer using the included USB 2.0 cable.
Charging time is between 3-5 hours, depending if the player is powered off or working. To keep the battery in good condition, we recommend not
charging it for more than 8 hours.
Important:
● Fully charge it before you use the player for the first time or when you haven’t used it for a long time.
● Charge the player immediately when the “Low battery” message is displayed.
● Do not over charge or discharge the player. Over charging or discharging will shorten the battery life.
● The battery could be over discharged if the player is not use d for a long time (over three months). To avoid over discharge, fully charge the player
every three months and always keep the voltage of the batte
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