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Charge power
Pi3900 has a built-in battery that can be
charged through the USB connector of the
supplied USB power adapter.
7KHÀUVWWLPH\RXXVHPi3900, charge Pi3900
for more than eight hours.
By using the USB cable, connect
Pi3900 to the supplied USB power
adapter.
Note
Rechargeable batteries have a limited number of charge
cycles. Battery life and number of charge cycles vary by
use and settings.
Conserve battery power
To conserve battery power and increase
the play time, do the following:
Use the power control widget
With the power control widget, you can switch
off the functions conveniently when they are
unnecessary.
To add the widget to the Home screen,
1 From the Home screen, select >
WIDGETS.
2 6ZLSHOHIWULJKWWRÀQGWKH3RZHUFRQWURO
widget.
3 Tap and hold the widget to add to the
Home screen.
To use the widget,
a Switch on or off Wi-Fi
b Switch on or off Bluetooth
c Switch on or off GPS
d Switch on or off background sync (for
some apps, like mail)
e Change the screen brightness
Use the sleep mode
After the selected time duration, Pi3900 goes
to the sleep mode, and the screen switches
off automatically. To save battery power, do the
following:
Go to
> Display > Sleep to set the
screen-off timer to a low value.
To switch off Wi-Fi during the sleep mode,
a Go to
> Wi-Fi.
b At the top bar, select
> Advanced
> Keep Wi-Fi on during sleep. Select
Never.
Switch the device on or off
Press and hold the power/ lock button until the
device is switched on or off.
d
a
c
b
e