Aspire Zelos 50W Kit Manuel De L'utilisateur page 39

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Using the Device
Sleep Mode
The Zelos will enter its sleep mode when being idle for 1 minute. In sleep
mode, press the fire button to awake the device.
Charge the Device
Charging the Zelos by connecting the micro USB charger with PC or
notebook. The micro USB port of the device is located above the adjustment
buttons.The maximum current can reach up to 1A. When you connect your
Zelos battery with the charger, the screen will show a flashing battery icon.
When the battery charge reaches 4.2 V or the device is fully charged, it will
stop charging and the screen will remain off.
Notes about the Battery Power & Lifetime
When the battery is not in operation for long periods of time, it loses – in
accordance with the industry standards and norms - after 3 months 5%
to 10%, after 6 months 15% to 20% and after one year 25% to 30% of its
power. We recommend that you charge the battery at least every 3 months
to ensure a long service life.